What is 11x9 plz answer

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?

Construct the graph that models the given situation

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.