Answer:
y=1
Step-by-step explanation:
the x changes but the y stays the same
5x-7
5 times x (a number) subtract 7
ratio:3:3:2
total of ratio=3+3+2=8
total money=40
sara gets 5x 3/8=15
eiona gets 5x 3/8+15
david gets=5x 2/8=10
y=5/3x