#50 - pg 328 - 330/ 3 - 5, 6 - 20 even #49 - pg 322 - 324/ 18 - 28 even, 32, 33, 36 #48 - pg 322/ 1 - 17 #47 - pg 314 - 316/ 3 - 48, multiples of 3 #46 - pg 310/ 1 - 3, 10 - 16