Answer:
Step-by-step explanation:
Get rid of the parenthesis then combine like terms
57/6 = $9.50 per shirt
9.50 x 4 = $38
Answer: $38
8
I believe that the answer is 8
2nd option
A difference of squares has the general form
a² - b²
where the terms on either side of the subtraction ( the difference ) are both perfect squares.
The only one fitting this description is
16a² - 4y²
= (4a)² - (2y)² ← difference of squares
