The consumer price index (CPI) for a given year is the amount of money in that year that has the same purchasing power as $100 in 1983. At the start of 2015, the CPI was 234.1 Write a formula for the CPI as a function of t years after 2015, assuming that the CPI increases by 2.7% every year. Equation Editor Common CPI = a b a CH 86 1 50 ab Matrix g |a| U sin(a) cos(a) tan(a) b d sec(a) csc(a) cot(a) dx fax [fdx 8 sin-1(a) cos(a) tan-1(a) a