hogan scored the following on his first 7 english tests : 100,84,72,95,60,92,98. what would he have to do to earn on his 8th test to keep his average an 85?

Answer 1

He would need a score of x, where x is the solution to

(x + 100 + 84 + 72 + 95 + 60 + 92 + 98) / 8 ≥ 85

You finish from here.