Answer:
The answer to this is false.
Step-by-step explanation:
Xy is Xy and Yx is Yx.
So there you go.
For this case we are asked the following question:
"What is the volume of the rubick's cube whose edge measures 3 cm"
By definition, the volume of a cube is given by:

Where:
l: Is the side or the edge of the cube
According to the statement we have:

Substituting:

Finally, the volume of the cube is 
Answer:

Answer:
Step-by-step explanation:
5(a-1) -15 = 3(a+2) +4, distribute multiplication over subtraction and addition
5a -5 -15 = 3a +6 + 4, isolate the variable on one side
5a -3a = 6 +4 +5 +15, combine like terms
2a = 30, divide both sides by 2
a= 15