C code for a program. The program should use a function to display a message and prompt the user to enter their dog's age. A second function should be used to compute and display the dog's age in human years.

# Exercise 8: Create a function that takes the sum of three numbers and returns the value # Make sure to use the function and display the result # When you are done, get 3 numbers from a user and then print out the sum using your function

er 6 Functions Programming Exercises te 1. Rectangle Area ngle Area The area of a rectangle is calculated according to the following formula: Area = Width X Length Design a function that accepts a rectangle's width and length as arguments and returns the rectangle's area. Use the function in a program that prompts the user to enter the rectangle's width and length, and then displays the rectangle's area.

C++  Mobile Service ProviderModify the program in Problem 5 so that it also displays how much package A customers would save if they purchased package B or C, and how much money Package B customers would save if they purchases Package C. If there would be no savings, no message should be printed. calculate the cost of all plans (A, B, and C) based on the number of minutes the user-entered. Then based on the plan user chose, compare, and calc. the difference among the plans.    this one has some error