Problem Set 7 and Quiz 6

**Problem Set 7, due in lecture, Monday,
Feb. 24**

Exercises 7.1B:

#1, 2, 3, 4, 5, 6, 7, 9, 14, 17

#20 (What do *you* think of this
problem?),

#22

**Quiz 6, Wednesday, February 19**

Quiz 6 will be have problems on the
multiplication of fractions.