Answer:
b
Step-by-step explanation:
distributive property-
-5c-(-20) which is -5c+20 which can also be 20-5c
Since they are starting with 270, the y intercept is going to be 270, now since they are losing 15 food everyday, the slope is going to be -15 so the final equation is y=-15x+270
On a number line, you could divide the eighths evenly and mark where the 5/8 are and where the 3/8 are. Then you will be able to see which one is farther on the number line.
Sorry I do not know I wish I could help you