Assume that tge volume, v, of a sphere is expanding at a rate of 100 inches cubex per minute, the volume of a sphere is given by v= 4/3 pir*3.determine the rate at which tge radius is changing with respect to time when r=8

Fifty students are trying to raise at least 12,500 for a class trip. they have already raised 1,250. how much should each student raise on average in order to meet the goal? write and solve the two step inequality for this problem