The total sales of a company (in millions of dollars) t months from now are given by the following formula. Upper S left parenthesis t right parenthesis equals 3 StartRoot t plus 10 EndRoot (A) Use the four-step process to find Upper S prime left parenthesis t right parenthesis. (B) Find S(15) and Upper S prime left parenthesis 15 right parenthesis. (C) Use the results in part (B) to estimate the total sales after 16 months and 17 months.
