Using simple interest find the unknown values a) 1=? P=2700 rate = 8% for 3 years b) Total Amount (A)=? 1=750 P=2000 c) P=? 1=225 rate = 6.25% for 4 years d) =? P=525 rate=4% for 30 monthss 2. Calculate the rate per compounding period, i a) 12% per annum, compounded monthly b) 8% per annum. compounded quarterly c) 10.4 % per annum, compounded weekly