B.) 6?....
This seems too easy for it to be correct but I think it is B.
Answers:

=======================================================
Work Shown:


P = perimeter

-------------
A = area

Answer:
x=8
Step-by-step explanation:
Here is how you solve this:
1- convert 2 1/2 to 4 3/4. 2 1/2 = 2 2/4 + 4 3/4= 6 5/4, 5/4 = 1 1/4= 6+1+ 1/4= 7 1/4.
2-15 1/3 - 7 1/4 = 8 1/12, 8 1/12 / 2= 4 1/4 and 3 5/6 is the answer.
On the 3rd and 4th day 4 1/4 in & 3 5/6in snow fell.