The cost function for q units of a certain item is C(q) = 94q + 99. The revenue function for the same item is R(q) = 94q + In q a. Find the marginal cost. % b. Find the prot function. 0. Find the prot from one more unit sold when 8-units are sold. a. The marginal cost is D. b. P(q)=D , . c. The prot from one more unit when 8 units are sold is approximately 3D. (Type an integer or decimal rounded to two decimal places as needed.)