If a lender makes a simple loan of $$400$ for $2$ years and charges $8\%,$ then the amount that the lender receive at maturity is $$.($Round your response to the nearest two decimal place$)$

If a lender makes a simple loan of $$2500$ for one year and charges $$90$ interest, then the simple interest rate on that Ioan is $\%.($Round your response to the nearest whole number$)$

If a borrower must repay $$106\mathrm{.}50$ one year from today in order to receive a simple loan of $$100$ today, the simple interest on this loan is

A$.6\mathrm{.}0\%$

B$.5\mathrm{.}0\%$

C$.6\mathrm{.}5\%$

D$.65\%$