Evaluate the expression when x= 2, y= -3, and z= -1 the equation is 2x+3y-z

What is the factored form of x2 − 4x − 5? (x + 5)(x − 1) (x + 5)(x + 1) (x − 5)(x − 1) (x − 5)(x + 1)

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

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?