Answer:
$480
Step-by-step explanation:
1) 7x + 8x + 10x =1200
25x=1200
x=48, where x is the amount needed to multiply
2) The greatest amount of share is the roommate paying 10 (in the ratio)
Using the x from Step 1 multiply 10 with 48
48 x 10
=480
Answer: $480
