can you please explain these questions.

l. The total weekly cost (in dollars) incurred by a company in pressing x compact discs is C(x) = 5,000 + 4x - 0.000 132 0 S x 5 8,000 What is the actual cost incurred in producing the 2,001 st disc? Round to the nearest hundredth. $ What is the actual cost incurred in producing the 3,0015t disc? Round to the nearest hundredth. $ What is the marginal cost when x = 2,000? $ What is the marginal cost when x = 3,000? 2. Find the relative maxima and relative minima, if any, of the function. Ax) = x - 8x Relative maximum: Relative minimum:3. Find the relative maxima and relative minima, if any, of the function. 3:: III) = 4 + x2 Relative maximum: Relative minimum