100 points ! i'm adding an attatchment so dont answer until u see the question pls

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me