p.126
	1. a += 25;
	2. b *= a * 2;
	3. b += 1;
	4. c %= 5;
	5. b /= a;

p. 148
	1. should be >=
	2. should be ==
	3. should be !=
	4. should be 'A'
	5. > won't work with an integer and a character
	6. -10 isn't being compared to anything