Class on Thursday is cancelled. Use your free 75 minutes to work on the following problems! I will collect these problems for a grade on Thursday March 31 at 10:15 AM. Late submission will not be accepted.

From **Section 6.1**: 4

From **Section 6.2**: 20, 24, 26, 30

From **Section ****6.3**: 3, 4, 12 (Hint: Use the complement rule), 28