Answer:
which one 1,2,3,4,5,6,7,8
All you need to do here is know where and how to plug in the numbers. In each equation, you'll have an initial fee, and an hourly fee, so your equation will be
y = i + hx, where i = the initial fee, and h = the hourly fee
So, after plugging them in, here's what you get:
Doors Galore: y = 40 + 50x
G&H: y = 60 + 40x
Multiply both sides by three to get 2x=30
Then divide both sides by 2 to get x=15
The slope is 7/6.
Hope it helps .