If the revenue of a shoe company is f(x) = 33x + 16, where x is the number of pairs of shoes sold, and the expenses of the company are g(x) = 4x + 50, where x is also the number of pairs of shoes sold, what is the profit of the company if they sell 105 pairs of shoes? . . a. . $3,481 . . b. . $3,011 . . c. . $3,951 . . d. . $3,111 .