The height h (in feet) of a kangaroo's jump can be modeled by h = -16t^2 +18t where t is the time(in seconds) since the kangaroo jumped off of the ground. find the zeros of the function. explain what the zero mean in this situation

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?