Which of the following expression(s) are fourth-degree binomials? Select all that apply. A. 4x*y + 6y
B. 4y3 + 4x3
C. 3y3 + 3x?y2
D. 3x4 - 3x3y2 + 7xy 3 + 4

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.

this would be 35. 35 + 5 = 40. you take the known constant and subtract by the answer of the equation and you get y.

answer is b  

20

hope you get this one right.