Answer:
A:
For EZ excavation, it would cost $980
For Happy Hauling, it would cost $1000
B:
Ez Excavation: 24.5 (24.5 dollars per cubic yard of dirt)
Happy Hauling: 25 (25 dollars per cubic yard of dirt)
C:
Ez Excavation because it would cost 20 less than Happy Hauling, allowing more money to be saved.
Explanation:
A and B:
You need to do change of y over change of X for the table. Rise over run for the graph to figure out the rate of change (Answer B). After, multiply those results by 40 to figure out the cost for each company and compare.
C:
Look at answer from A. EZ Excavation is cheaper by 20 dollars.