Me! i'm a bit skeptical about my answer, is it correct or not?

Arecipe calls for 32 fluid ounces of heavy cream. how many 1 pint containers of heavy cream are needed to make the recipe?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

In angle pqr find the measure of