a future amount of $ 150,000 is to be accumulated annual payments, A, OVER 20 YEARS . The payment A is made at the start of each year. (a)if the interest rate is 9% per year what is the value of A (b) if the annual payment amount is double to 2A at the start of yrear eleven ,with the finance company promising an accumulation of $ 225,00 . will this be a better decision than part (a)