A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function h=-16t^2 +64t +960. When did the ball hit the ground? a) 10 seconds

b) 7 seconds

c) 5 seconds

d) 2 seconds

step-by-step explanation:

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

110

step-by-step explanation:

based on the question i am guessing that it is a typo for abc