Answer:
(you have to have the .0 since it says to round to the nearest <em>tenth</em>)
Step-by-step explanation:
The formula for the surface area of a rectangular prism is:

So just plug in the values.
Height= 4
Width=2
Length=5

It means your solving for x
The answer to this equation is 13ft squared
(B) Opposite sides are equal (otherwise, trapezoid, etc)
Answer:
Either 130 or 131 would be acceptable.
Step-by-step explanation:
When we estimate, we do not use exact values.
66.17 is close to 66
44.98 is close to 45
20.15 is close to 20
Add the estimates together: 66+ 45+ 20 = 131
We could also estimate 66.17 to 65 which would give us an estimate of 130