Plz help i will mark u brainiest

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

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?

Which two undefined geometric terms always describe figures with no beginning or end?