You need to show the data above
first step is to subtract 21 from both sides
2m+21-21=3-21
2m=-18
2m/2 and -18/2
m=-9
So the final answer is m=-9 (negative nine equals m)
To find the area you would had to do a an triangle formula so the final answer would be 63 inches
Answer:

Step-by-step explanation:
They are just asking you to compare
to
.
What constant values are in the place of
.


