The cost and revenue function in dollar terms for a fast-food joint is given as follows: C(x) = 200x + 200 x + 4 and R(x) = 50x If x is measured in hundreds of units, what is the break-even point for this fast food joint? Elijah Mohammed is the sole proprietor of KitKat Enterprise that produces and sells T-shirts. His weekly profit in hundreds of dollars is given by the function R(t) = -2t^2 + 120t - 240 where t is the number of T-shirts sold in 100s. a. Find the number of T-shirts sales that will lead to maximum revenue. b. Find the maximum revenue. c. Briefly explain why it is possible for him to make lesser profit if he sells more than the number of t-shirts arrived at as answer to sub-question (a) immediately above