Answer:
4q+20
I used the distributive property.
Answer & Step-by-step explanation:
PEMDAS:
Parentheses
Exponents
Multiplication and Division left to right
Addition and Subtraction left to right
We have two forms of grouping in the expression. Do the inner-most one first, still following PEMDAS within the grouping symbol:
Simplify division:

Re-insert:

Simplify subtraction and addition within parentheses:

Re-insert:

Simplify division:

:Done
Area = 1/2 base multiplied by height. I don't think you have the right dimensions. :(