Why did the picture go to jail (big ideas math puzzle time, red book, common core)

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out