A soccer ball is kicked in the air from the stadium. The height, h, in feet, of the ball can be modeled by the equation h = -16t2 + 34t + 15 where t is the time in seconds. When will the ball hit the ground?

Milk and ice cream are mixed together for a recipe. the total volume of the mixture is 1 cup. if the milk contains 2% fat, the cream contains 18% fat ,and the mixture contains 6% fat ,how much cream is in the mixture