Answer: 
Step-by-step explanation:
Given:

To make
the subject of the formula means that we want to make
to stand alone , the first thing to do is to multiply through by 1/4a , that is

take the square of both sides:

estimate: 0.8
actual: 0.74285714285
Answer:
13. A
14. True
Step-by-step explanation:
The months cancel out because they are the same unit in the right positions, and all you have to do for the second one is multiply