Use at least five $(5)$ different functions from Topic $8\text{'}$s slides to write a program that you find interesting.

Use any five functions that you wish.

For example, calculate:

A mortgage payment to determine your monthly payments on a home,

The escape velocity from a moon, planet, and$/$or star,

Compound interest to determine how much your money grows after so many years,

The sides and$/$or angles of a triangle,

Random numbers to simulate flipping a coin, or a card game, or lottery, $...$

Something else you find interesting.

You must ask the user to enter numbers for input into your program.

Make sure to include getdouble.h and make a correct makefile!

Don't forget the $-$lm flag if you include math.h

Otherwise, your coding is up to you.

Please be clear with your comments and instructions to the user, so I can understand what you're doing in your program.