I need an assist. You will literally save my grade if you answer.
High amount of points are now on the table.

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?

X+ y = 5 ; x - y =3 solve using linear combination

Find the area of an equilateral triangle with a side of 6 inches