If a lender makes a simple loan of $400 for 5 years and charges 5%, then the amount that the lender receive at maturity is (?)$? (Round your response to the nearest wholenumber)

If a lender makes a simple loan of $2000 for one year and charges $150 interest, then the simple interest rate on that loan is (?)%? (Round your response to the nearest wholenumber)

If a borrower must repay$106.50 one year from today in order to receive a simple loan of$100 today, the simple interest on this loan is

a. 6%

b. 5%

c. 6.5%

d. 65%