Hassan writes an algebraic expression with four terms. the x-term has a coefficient of 2 and the z-term has a coefficient of -1. the expression has a constant term less than zero which expression could he have written

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?