FCFE to include or not include cash, that is the question

CFA Level II Equities
#1

From my understanding and from reading the book, when computing changes in NWCInv for purposes of FCFE we do not include cash and cash equivalents.

Please correct me if I am wrong.

But for some reason, the answer to this following problem includes cash (pg 351):

Current assets (includes $5 cash in 2007 and 2008) 2007 = 201 and 2008 = 326

Current liabilities (all non-int bearing) 2007 = 57 and 2008 = 141

Solution page 365 Investment in WC = 41

Can anyone help explain why this problem includes cash?

#2

Don’t worry about answering this. I think I found my answer, brain is fried.