Any help would be appreciated!

Hmm, I think you're correct: \(\frac{13}{35}+\frac{2}{5}=\boxed{\frac{27}{35}}\)

The answer is a, 13/14. 

You can look at my other post to find the solution, but here it is anyways. 

Case 1: Yes replacements

2/5

Case 2: No replacements

Look at previous post. 

I hope this helps,

Gavin