Answer:
Heather: 29
Deon: 20
Trey: 60
Explanation:
Heather: x
Deon: x - 9
Trey: 3(x-9)
x + x-9 + 3(x-9) = 109
5x - 36 = 109
x = 29
4.6m questions
6.0m answers