Answer:
18 sq ft
Step-by-step explanation: all you have to do is add the sides. 5+5=10
4+4= 8
10+8=18
This makes the most sense with the answers givin
For this case we have:
By properties of the radicals 
So:
.
Now, for power properties we have:

Thus, 
So:
in its radical form
Answer:
in its simplest form.
in its radical form
4 meters
tons and grams are mass measurements
kilometer is closer to a mile measurement
so the only one that makes sense is 4 meters
the answer to this is
the two is for the top of the five 2
-3(x - 5) +23