5m + 72 = -2m + 52
5m + 72 + 2m = -2m + 52 + 2m
7m + 72 = 52
7m + 72 - 72 = 52 - 72
7m = -20
7m/7 = -20/7
m = -20/7
You could turn the fraction into a decimal and then see which is bigger
A. m = 0 || This is incorrect, because m being equal to 0 is a solution in and of itself.
B. m = m || This is incorrect, because m being equal to itself means that there are an infinite number of solutions.
C. 2m + 1 = m - 2 | m = -3 || This is incorrect, because m can be solved for and has a solution.
D. m + 4 = m - 4 | 4 = -4 || This is correct because 4 is not equal to -4, and thus there is no solution.
Hope this helps!! :)
Answer:
25x25x25x25 Perfect square!
Step-by-step explanation:
Perfect square will always give you the most surface area.
So in this case...
100/4=25ft each side.
Thanks for letting me help!!
