B.2 #17
B.2 #17 was worded incorrectly. I have fixed the file.
I get a lot of questions about how to construct a butterfly. See the PDF below.
How to construct a butterfly using all calls.
There was a minor typo in A.2 #11. Choice D should be “1, 3″ instead of “1, 2″. I’ve corrected this typo.
There was a typo in B.2 #12. The 6% should be 8%. I have fixed the file.
There was a typo in this problem. Bill’s profit should be $20 instead of $10. I’ve updated the file.