If you are solving for "z", the answer is
z=2w^2+7w/10 -2
In order to find the scale they are using first you must divide 12 by 3.75.
But since we get to estimate, the 3.75 will be made into a 4 because it's the whole number closest to 3.75.
12/4=3
Take your 3 inch scale and multiply it by 3 (we are using 3 instead of 2.8 because it's a whole number) to get the real life fence size.
3x3=9
The fence is about 9 feet.
43.7 % is equivalent to 0.437 .
33 percent.
7/21 = 0.3333333
