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**1. Homework Statement**

List all the subsets of set B.

B = {4,8,12}

**2. Homework Equations**

A={5,10,15,20} C={4,8,12,16} D={2,4,6,8,10} E={4,12}

**3. The Attempt at a Solution**

I know that the equation for finding the number of subsets is 2

^{n}, but I don't exactly understand how I'm supposed to list them.