Is (2,1) a solution to this system of equations??
8x+7y=11
x+y=3

a) Yes
b) No

Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?

Place the indicated product in the proper location on the grid. -4x3y2(7xy4)

Aparachutist descends 38 in 2 seconds . express the rate of the parachutists change in height as a unit rate