Well remember this:
When the signs are the same it is positive
When the signs are different make it negative
When you are subtracting a negative and positive, it is going to be like adding
for example:
-9 - 5 = -14
You just add 9 and 5 to get 14, the signs are different so it is going to be negative. ONLY WHEN YOU ARE SUBTRACTING NEGATIVES
Answer:
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Step-by-step explanation:
Answer:
<h2>V = 27 in³</h2>
Step-by-step explanation:
The formula of a surface area of a cube:

a - edge
We have S.A. = 54 in². Substitute:
<em>divide both sides by 6</em>

The formula of a volume of a cube:

Substitute:
