Please answer the question right this is my test or at least give me a clue

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

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?