Answer:
C
Explanation:
Compare the prices. You can tell which item cost less per unit and is the best deal.
Answer:
4*0.07=energy use per day(x)
(x)*30=energy use in thirty days (y)
Therefore
X=$0.28
Y=$8.4
Explanation:
First we find out how many weeks are in 1 year:
1 year = 52.1429 weeks
Then we find out how many hours he worked in a year by multiplying the number of hours he worked by the number of weeks there are in a year:
40 hrs/week x 52.1429 hrs/year = 2,085.716 hrs
Finally we divide:
27,040 dollars/year by 2,085.716 hrs
Afterwards we get 12.964372906, or to make it simpler we would round and get 12.96 dollars/hour
So your answer is $12.96 per hour.