Answer:
<h2>8 times greater</h2>
Step-by-step explanation:
The formula of a volume of a cube:

a - edge length
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The edge length of cube B is a.
The edge length of cube A is 2a.
Calculate the volumes:

How many times greater is the volume of the cube A than the volume of cube B?
Make the quotient:

Step-by-step explanation:
///////hope it helps:)
15 is the answer . What you do is unsimplify 2/5 which equals .4 . Then divide 6 and .4 which is 15