What position did the ghost play on the hockey team?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

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?