The total sales of S (in thousands of DVD's) of a certain movie are given by the following formula where t is the number of months since the release of the DVD. Use the formula to answer the questions. 90+2 S(1) = 2+ 150 a) Find S'(t). 27000t S'(t) = (12 + 150) 2 b) Find S(10) and S'(10). The value of S(10) rounded to the nearest hundredth is 36 . The value of S'(10) rounded to the nearest hundredth is