diff --git a/lab-python-list-comprehension.ipynb b/lab-python-list-comprehension.ipynb
index 5a3c3e1..221fdad 100644
--- a/lab-python-list-comprehension.ipynb
+++ b/lab-python-list-comprehension.ipynb
@@ -75,11 +75,171 @@
     "\n",
     "```\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
+   "id": "069e8713",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#1\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {product: int(input(f\"Enter the quantity of {product}s available: \")) for product in products}\n",
+    "    return inventory\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 55,
+   "id": "3b72db1d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "#2. Modify the function get_customer_orders so it prompts the user to enter the number of customer orders and gathers the product \n",
+    "#names using a loop and user input. Use comprehension.\n",
+    "\n",
+    "def get_customer_orders(inventory):\n",
+    "    num_orders = int(input(\"Enter the number of customer orders: \"))\n",
+    "    orders = [input(\"Enter the name of a product that a customer wants to order: \").strip().lower() for _ in range(num_orders) ]\n",
+    "    customer_orders = {order for order in orders if order in inventory}\n",
+    "    return customer_orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 56,
+   "id": "88cfbe42",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# 3. Add a new function to calculate the total price of the customer order. For each product in customer_orders, \n",
+    "# prompt the user to enter the price of that product. Use comprehension to calculate the total price.\n",
+    "#  Note: assume that the user can only have 1 unit of each product.\n",
+    "\n",
+    "def calculate_total_price(customer_orders):\n",
+    "    prices = [float(input(f\"Enter the price of {product}: \")) for product in customer_orders]\n",
+    "    total_price = sum(prices)\n",
+    "    return prices,total_price"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 57,
+   "id": "7beba7f9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "#4. Modify the update_inventory function to remove the product from the inventory if its quantity becomes zero after \n",
+    "# fulfilling the customer orders. Use comprehension to filter out the products with a quantity of zero from the inventory.\n",
+    "\n",
+    "def update_inventory(inventory, customer_orders):\n",
+    "    # Reduce the quantity of each ordered product by 1 if it exists\n",
+    "    for order in customer_orders:\n",
+    "        if order in inventory:\n",
+    "            inventory[order] -= 1\n",
+    "\n",
+    "    # Filter out products with quantity > 0 using comprehension\n",
+    "    inventory = {product: qty for product, qty in inventory.items() if qty > 0}\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "46833ba0",
+   "metadata": {},
+   "source": [
+    "5. Print the total price of the customer order.\n",
+    "\n",
+    "Your code should produce output similar to the following:\n",
+    "\n",
+    "```python\n",
+    "Enter the quantity of t-shirts available:  5\n",
+    "Enter the quantity of mugs available:  4\n",
+    "Enter the quantity of hats available:  3\n",
+    "Enter the quantity of books available:  2\n",
+    "Enter the quantity of keychains available:  1\n",
+    "Enter the number of customer orders:  2\n",
+    "Enter the name of a product that a customer wants to order:  hat\n",
+    "Enter the name of a product that a customer wants to order:  keychain\n",
+    "\n",
+    "Order Statistics:\n",
+    "Total Products Ordered: 2\n",
+    "Percentage of Unique Products Ordered: 40.0\n",
+    "\n",
+    "Updated Inventory:\n",
+    "t-shirt: 5\n",
+    "mug: 4\n",
+    "hat: 2\n",
+    "book: 2\n",
+    "Enter the price of keychain:  5\n",
+    "Enter the price of hat:  10\n",
+    "Total Price: 15.0\n",
+    "\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 58,
+   "id": "62ffabcc",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: 2\n",
+      "Percentage of Unique Products Ordered: 40.0%\n",
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 5\n",
+      "mug: 4\n",
+      "hat: 2\n",
+      "book: 1\n",
+      "keychain: 1\n",
+      "\n",
+      "Prices entered: [10.0, 15.0]\n",
+      "Total Price: 25.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "def main():\n",
+    "    products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "    inventory = initialize_inventory(products)\n",
+    "    customer_orders = get_customer_orders(inventory)\n",
+    "    \n",
+    "    print(\"\\nOrder Statistics:\")\n",
+    "    print(f\"Total Products Ordered: {len(customer_orders)}\")\n",
+    "    percentage = (len(customer_orders) / len(inventory)) * 100\n",
+    "    print(f\"Percentage of Unique Products Ordered: {percentage:.1f}%\")\n",
+    "\n",
+    "    inventory = update_inventory(inventory, customer_orders)\n",
+    "\n",
+    "    print(\"\\nUpdated Inventory:\")\n",
+    "    for product, qty in inventory.items():\n",
+    "        print(f\"{product}: {qty}\")\n",
+    "\n",
+    "    prices, total_price = calculate_total_price(customer_orders)\n",
+    "    print(f\"\\nPrices entered: {prices}\")\n",
+    "    print(f\"Total Price: {total_price:.1f}\")\n",
+    "\n",
+    "\n",
+    "# Run the program\n",
+    "if __name__ == \"__main__\":\n",
+    "    main()"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -93,7 +253,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.9.23"
   }
  },
  "nbformat": 4,