10÷ 5/8 I need help to answer this

In what organelle does photosynthesis take place?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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?