Hey can you make sure i got these two answers correct? < 3

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?

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)