The practice homework is due W2 and the 
first "real" homework (3 problems) is due
on F2. Classcomm has bins to upload it to
and also shows a date. I have labelled the
homework by the original day it is due, even
if subsequently it becomes due later. Thus
the homework due W2 is so labelled. Please
refer to a homework set with that letter-number
system.

(This question was asked early in the semester.)