Find the amount of ordinary annuity with $800 paid at the end of each quarter for 5 years at the rate of 8% (compounded quarterly). (round your answer to the nearest cent) Find the amount of ordinary annuity with $1200 paid at the end of each month for 3 years at the rate of 3% (compounded monthly). (round your answer to the nearest cent) Determine the simple interest rate at which $1400 will grow to $1450 in 4 months. (give the answer as percentage rounded to two decimals)