Marietta was given a raise of $0.75 an hour, which brought her hourly wage to $12.25. Write and solve an equation to determine Marietta’s hourly wage before her raise. Show that your answer is reasonable.

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?