HW for week 2 & 3

Week 2: 2.2: 4, 12, 21, 22, 23, 26, 28
	2.3: 3, 12, 16, 18, 20, 25, 28, 36, 41, 42, 57
	2.5: 4, 7, 16, 20, 22, 32, 38, 59
Due: Oct. 11

Week 3: 2.6: 3, 12, 14, 20, 22, 30, 43, 49
	2.7: 2, 8, 25
	2.8: 4, 7, 16
Due: Oct. 18