3. The formula for determining compound interest is:   A represents the amount to earn; P is the principle that is initially invested; r is the interest rate earned; n is the number of times the interest is compounded; and t is the number of time periods for the investment.   Write a program that prompts the user to enter P, r, n and t. The program should output the amount earned on the investment.

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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3. The formula for determining compound interest is:
 

A represents the amount to earn; P is the principle that is initially invested; r is the interest rate earned; n is the number of times the interest is compounded; and t is the number of time periods for the investment.
 
Write a program that prompts the user to enter P, r, n and t. The program should output the amount earned on the investment.
 
4. Look up the Pythagorean theorem if you are not already familiar with it. Use the following formula to solve for c in the formula: c = √a2 + b2. Use the proper functions from the cmath header file. Be sure to output the result.l

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