William needs 102.6 fencing in all because 76.9 plus 25.7 equals 102.6, hope this helps!
Check the picture below.
so the quadrilateral is really just a parallelogram below a triangle, so let's simply get the area of each and sum them up.

Answer:
C. 1 day
Step-by-step explanation:
Chris:
10 - 4d
Evan:
8 - 2d
How many days will it take before they both have the same number of bags remaining?
Equate both expressions and solve
10 - 4d = 8 - 2d
Collect like terms
10 - 8 = -2d + 4d
2 = 2d
Divide both sides by 2
d = 2/2
= 1
d = 1 day
It will take 1 day before they both have the same number of bags remaining
The answer is 3>x because first you divide by three on both sides leaving you with positive 9>4x-3 then you add three on both side leaving you with 12>4x and lastly you divide four on bottom sides ending with 3>x.