Answer:
1) 26
2) 6.5
the sum of numbers/ number of them
Here I have attached a photo to help you with this:
I believe it is <span>b)the square of the sum of 2 times x and 5</span>
(8c)^2+7c
(8c)^2=64c^2
so that..
64c^2+7c
factor out c
c(64c+7)
8 yards long and 6 yards wide and how many post did he use 6x8=18 multiply to get the number