Review sheet is here.

Answers for problems 1a and 1b.

Answers for problems 1c and 1d.

Answers for problems 1e and 8.

Answers for problem 2.

Answers for problem 3.

Answers for problem 4.

Answers for problem 5.

Answers for problem 6 and 11.

Answers for problem 7.

Answers for problem 9.

Answers for problem 10.

Answers for problem 12.