-0.25m+m would work but im not sure if thats what the question is looking for
Squares have all equal sides so 10x4=40 40 ft is the answer
The plus sign means that we have to sum all the terms inside of the second parenthesis, while the minus sign means that we have to change all the signs inside the last parenthesis:

Now we only have to gather all like terms:

The answer to that problem is 27. You could divide 108 by 4 and get the answer of 27
A would be the correct answer because the y variable only has a coefficient of 1. So we would solve for y, which would get us y=3x+5, then we would substitute the value in the second equation which would look like -4x+5(3x+5)=58. Hope this helpss. :)