1. A company estimates that the marginal cost (in dollars per item) of producingxitems is 1.93 - 0.002x. If the cost of producing one item is 558, find the cost of producing 100 items.

2. Use the Midpoint Rule with the given value ofnto approximate the integral. Round the answer to four decimal places.

3. Consider the given integral.

(a) Find an approximation to the integralGusing a Riemann sum with right endpoints andn= 8.

(b) Iffis integrable on [a,b], the following equation is correct.

Use this to evaluate the integralG.

4.Evaluate the integral.

5. Evaluate the integral.