A local Dunkin’ Donuts shop reported that its sales have increased exactly 16% per year for the last 2 years. This year’s sales were $80,642. What were Dunkin' Donuts' sales 2 years ago?
Declare variable and convert numbers:
16% = 0.16
let the sales 2 years ago be s.
s(1 + 0.16)(1 + 0.16) =...
