In: Math
You start a t-shirt manufacturing plant. You spend $8 on each shirt you produce,
and then sell them to a clothing store for $10 each. Each month, your building lease costs you $12000.
(a) Compute a cost function C(x) for the business.
(b) Compute a revenue function R(x) for the business.
(c) Compute a profit function P (x) for the business.
(d) Finally, compute the marginal cost function C(x).