how much interest will $ 8,000 earn in 9 months at an annual rate of 6 % ?
"soln : - 9 months = 3 / 4 of year ; 6 % = 6 / 100 = 3 / 50 ; $ 8,000 ( principal ) * 3 / 50 ( interest rate ) * 3 / 4 ( time ) = $ 360 . answer : c"
multiply(multiply(power(const_100, const_2), divide(6, const_100)), divide(const_3, 6))