The number of exercises on Khan academy has increased rapidly since it began in 200620062006. The relationship between the elapsed time, ttt, in years, since Khan academy began, and the total number of its exercises, E_{\text{year}}(t)E year (t)E, start subscript, start text, y, e, a, r, end text, end subscript, left parenthesis, t, right parenthesis, is modeled by the following function: Eyear(t)=100⋅(1.7)t Complete the following sentence about the monthly rate of change in the number of exercises. Round your answer to two decimal places. Every month, the number of exercises increases by a factor of 1.05 .