Submission of the lab

main.py

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+# Python program to calculate the total cost of a customer's purchase, including tax.
+
+# First Attempt (With Errors):
+
+'''
+price = 2.99
+quantity = 3
+tax_rate = 7.5
+subtotal = (price * quantity)
+
+tax = (subtotal * tax_rate)
+total_cost =(subtotal + tax)
+
+
+print("Price of item:" + "$" + (round(price, 2)))
+print("Quantity:" + quantity)
+print("Tax rate:" + (round(tax_rate, 2)) + "%")
+
+
+print()
+print("Subtotal:" + "$" + (round(subtotal, 2)))
+print("Tax:" + "$" + (round(tax, 2)))
+print("Total:" + "$" + (round(total_cost, 2)))
+
+'''
+
+'''
+My first attempt at solving the problem was written as follows.
+While working on it, I encountered some errors related to calculations and data formatting. I reviewed the mistakes and searched for solutions, which helped me understand the correct approach. 
+After fixing the issues, I reached the corrected version shown below.
+
+'''
+
+# Corrected Version:
+
+
+
+price = 2.99
+quantity = 3
+tax_rate = 0.075
+
+subtotal = price * quantity
+tax = subtotal * tax_rate
+total = subtotal + tax
+
+print(f"Price of item: ${price:.2f}")
+print(f"Quantity: {quantity}")
+print(f"Tax rate: {tax_rate * 100}%")
+
+print()
+print(f"Subtotal: ${subtotal:.2f}")
+print(f"Tax: ${tax:.2f}")
+print(f"Total: ${total:.2f}")
+
+
+
+# Bouns -  create a new python file and do the following:
+
+# Define a string variables
+about_me:str = "Hello, my name is Araa Almarhabi, I am studying web development using Python at Tuwaiq Academy"
+
+programming_language:str = "Python" 
+
+# Length 
+print(len(about_me))
+print(len(programming_language))
+
+
+# Print the index of the first occurrence of the word in the sentence.
+print(programming_language[0])
+
+# Print the number of times the word appears in the sentence.
+print(about_me.count(programming_language))
+
+# Print the sentence in all uppercase letters.
+print(about_me.upper())
+
+# Print the sentence in all lowercase letter. 
+print(about_me.lower())
+# Replace the word in the sentence with a new word of your choice.
+print(about_me.replace("Python", "Java"))
+
+# Print the last character of the sentence.
+print(about_me[-1])
+
+