The answer would be 120 hope this helps!!
The width of this box is 80
(b+5)*2 since it says sum you have to add. You put it in parenthesis because you have to multiply the b added to 5 by 2 and without the parenthesis, you would have to multiply s by 2 according to pemdas (the order of the operations).
It would be 3/9 because 3x3 is 9 and what u do to the denominator you have to do to the numerator, 1x3 is 3, so the answer is 3/9
