Question

Which explanation correctly solves this problem?

Answer 1

I believe it is C :) please tell me if i am wrong UvU                          

Answer 2

Given:
Left over fence: 13.5 feet
Used during the day:
2.5 ft - 1 pc
6.75 ft - 2 pcs
12 ft - 1 pc

Length of fence at the beginning of the day.

2.5ft(1) + 6.75ft(2) + 12ft(1) + 13.5ft(1) 
2.5 ft + 13.5 ft + 12ft + 13.5ft = 41.5 ft 

C.
Start with 13.5. Add 2.5 to it. Multiply 6.75 by 2 and add the sum and the product together. Then add 12 to the answer.