Answer:
10 feet 6 inch
Step-by-step explanation:
3 times 42 is 126. 126 to feet is 10 ft 6 inch
So I hope this helps and is exactly what you are looking for
Answer:
-7/3
Step-by-step explanation:
-7 2/3=-23/3
5 1/3=16/3
-----------------
16/3+(-23/3)
16/3-23/3
-7/3
Answer:

Step-by-step explanation:
Let the side length of the square base =s feet
Let the height of the box = h
Given that the volume of the box = 
Volume of the box =
Then:

Surface Area of a Rectangular Prism =2(lb+bh+lh)
Since we have a square base, l=b=s feet
Therefore:
Surface Area of our closed box

Answer:
780ft Hope i helped <3
Step-by-step explanation: