A manufacturer is making a special voltage small electronic battery. The total cost, C, (in thousands of dollars) to make the batteries is a function of the number of batteries made u (in thousands) and is given by C(u) = 0.001842 + 0.114 + 340. The manufacturer plans to charge wholesalers $2.10 per battery Hint: P(u) = R(u) - C(u) and R(u) = price u a) What is the marginal profit at the production level of 327 thousand batteries? (round to the nearest 0.01) c) What is the marginal profit at the production level of 833 thousand batteries? (round to the nearest 0.01)