What is the approximate volume of the cone? use 3.14 for π a. 471 cm^3
b. 94.2 cm ^3
c. 31.4 cm ^3
d. 157 cm ^3​

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?