7. The height of a golf ball in meters x seconds after it has been hit is given by -4.9x2 + 42x. When does the ball hit the ground?
2.14 seconds
4.92 seconds
9.3 seconds
8.57 seconds

How many lines can be drawn through points j and k? 0 1 2 3

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?