Which of the following best represents the average speed of a fast runner? 10 meters per second 10 miles per minute 10 centimeters per hour 10 kilometers per second

The john deere company has found that revenue, in dollars, from sales of heavy-duty tractors is a function of the unit price p, in dollars, that it charges. if therevenue r is r(p)= -1/2p^2 +1900pa)how much revenue will the company generate if they sell 700 tractors? b) how many tractors does the company want to sell to maximize the revenue?