The cost (in dollars) to produce x hundred toys is given by C(x) = 1000 + 100x 0.25x 2 . Make sure to use correct units in your answers. 1. What are the fixed costs? What can they represent? 2. What is the cost to produce 4000 toys? 3. Find the marginal cost. What is its interpretation? 4. Use the marginal cost to estimate the cost to produce 4100 toys, and compare to the real value. 5. Compute the average cost A(x) = C(x)/x, the marginal average cost A (x), and give their interpretation. 6. Compute A (40) and give its interpretation