You can make 4 out of 18 cubes
The length of the shorter side is 7 longer side is 12 7+7+12+12 is 38 and 7x12 is 84
Answer:

Step By Step Explanation:
Remove Parenthesis: (a) = a

Simplify 

Rewrite Equation:

Simplify 

- Mordancy
The top right corner is the table that represents a linear function because when x goes up by 1 y continuously goes down by 2 and stays consistent