Let 7 (q) be the marginal profit function, in dollars per thousand phones, derived from the manufacture and sale of q (thousand) units of a type of cell phone. Find the units of the definite integral: 12 10 TT ( q) dq Select one: O dollars per 1000 phones O phones O dollars O profitWhich of the following statements are true? a) If fo F" (t) dt F(5). b) If F' (t) is constant, then fo F' (t) dt = 0. Select one: O a. Only B) O b. Both A) and B) O c. Only A) O d. Neither A) or B)The marginal cost function of a product, in dollars per unit, is Cl(q) : 2g2 q | 100. If the fixed costs are $1000, find the total cost to produce 6 items. Select one: {3 $1226 [3 $2726 (I) $1726 o $7'26