A soccer ball is kicked from ground level. The function y =-16x (x - 4) shows the height (in feet) of the ball, where x is time in seconds). After how many seconds will the ball hit the ground?
The ball will hit the ground in
seconds.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.

Ava is 112 cm  olivia is 89 cm