(Solved): Suppose that a company's daily sales volume attributed to an advertising campaign is given by the ...

Suppose that a company's daily sales volume attributed to an advertising campaign is given by the following equation. 36 s(t) (t + 5)² 4 t + 5 + 3 (a) Find how long it will be before sales volume is maximized. t = days (b) Find how long it will be before the rate of change of sales volume is minimized. That is, find the point of diminishing returns. days t =