To write the problem out as an equation, let 'n' equal your number.
(15 x 1/n) - 3n
The answer is C 3. she has a 50/50 chance of grabbing either black or white. Subtracting either a black or white sock, the probably of getting a matching pair is 1/3 from there.
<span>(y^5)^2 = y^10
This is power of a power property</span>
