Difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
It would be 18.72$. Hope dis helps :)
So I think it’s 6:2 bc 6 apples and two oranges make 8 so the 8 pieces of fruit are the apples and oranges meaning that it probably put that to throw you off

solve for "b", to see what the base is
what about the height? well, h = 4b