Answer:
5X - 10
Step-by-step explanation:
Sarah had X
Then, Rachael had 4X
And, Addie had X - 10
Total dollar = X + 4X + X - 10
= 5X - 10
96.56 kilometers
was there more
(i will edit answer)
y = -3/2x + 3
y = x + 1
y = 5/4x - 2