Plz help if I don’t pass this test I am going to fail

Given the conditional statement, match the following. conditional statement: if two lines intersect, then their intersection is one point.

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?

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i