x + 4x = 40
5x = 40
x = 8
Mrs. Viola has 8 and Mrs. Rullo has 4*8=32 pens.
He fourth one: 4,5,6,7,8...if it has those two bars || it means absolute value which basically means if its negative you just change it to a posotive :)
Answer:
Is B/144
Step-by-step explanation:
All you have to do is length x width x height. or multiply all those numbers together.