3) The Marginal Cost for a certain product, in $ per item, is MC = 4 + e'u'lx . The total cost to produce 100 items is $540. [a] Find the equation for Total Cost. Round the constant of integration to the nearest cent. {Ir} Which statement is true for all x :5- 0? Ii'fou't-'e grinted this test, rst circle your choice of i, ii, iii or iii, than Show why in the space below. Iffou didn't E' t the testgrinting is not exEctedthen rst complletel}r show your work and then below and aer that, 'WI'l'li the number of your choice (i), {ii}, (iii) or (iv) and double-underline that. i. Total Cost and Marginal Cost are both increasing. ii. Total Cost and Marginal Cost are both decreasing. iii. Total Cost is increasing, and Marginal Cost is decreasing. it. Total Cost is decreasing, and Marginal l[Cost is increasing