. -) Cengage Digital Learni Suppose that demand as a function of price for selling umbrellas is f(p) = 2000 - 50p where f(p) is the number of umbrellas that can be sold at a price of p dollars per umbrella. a. How many umbrellas can be sold at a price of $20 per umbrella. umbrellas b. Draw a graph of z=f(p). The horizontal axis is the price and the vertical axis is the demand. 2000 1750 1500+ 1250+ 1000 750+ 500- 250 10 Clear All Draw: 15 20 25 35 30 40 c. In the graph, what is the domain of f(p)? Use inequalities to answer, and use p as your variable. Preview d. In the graph, what is the range of f(p)? Use inequalities to answer, and use y as your variable.