find the compound interest on $ 1200 for 2 years at 20 % p . a . if ci is component yearly ?
a = p ( 1 + r / 100 ) ^ t = 1200 ( 1 + 20 / 100 ) ^ 2 = $ 1728 ci = $ 548 answer is c
subtract(multiply(1200, power(add(const_1, divide(20, const_100)), 2)), 1200)