Question

Data Programming l: Python

1. Write a program that calculates how much Mary should pay for buying 3 KitKat each worth $2 and 2 Twix chocolate each worth $4.

   Output:

   Mary should pay $14.

2. 
   Write a program that takes the circle radius and compute the circle area. Use the round function to have at most 2 decimal places in the output.

   Output:

   The area of a circle with 4 inches radius is 50.27

Answer 1

cost = 3*2 + 2*4
print("Mary should pay $"+str(cost)+".")

import math
radius = int(input("Enter circle radius: "))
print("The area of a circle with "+str(radius)+" inches radius is %.2f"%(math.pi*radius*radius))