Fred Flintstone bought seven boxes to put with his collection of boxes. A week
later half the boxes were ruined in the rain. There are now only 22 boxes left. With
how many did he start? (Select the correct equation)

Using elimination, what is -4x+2y=-12 4x+8y=-24

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

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?