Exercise 2.3 at pg24: Say you barrowed $10,000 from a bank at 12% interest rate per year for a period of 10 years. How much will you have to pay back after 10 years, if a. The bank charged you simple...

Exercise 2.3 at pg24: Say you barrowed $10,000 from a bank at 12% interest rate per year for a period of 10 years. How much will you have to pay back after 10 years, if
a. The bank charged you simple interest?
b. The bank charged you compound interest?

Please explain step by step