If a lender makes a simple loan of $500 for 3 years and charges 7%, then the amount that the lender receive at maturity is $____. (Round your response to the nearest two decimalplace)

If a lender makes a simple loan of $1000 for one year and charges $70 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 _____