Homework for 5/2/12

Standard:

p.520 #35, 36, 38
p.539 #1, 2, 4
p.541 #30-38
  
Pre-algebra:


p.685-686 #21-23, 29, 38
p.692-694 #1, 4, 5, 7 ,12, 30, 31,
(E.C. p/ 679 "Collecting Seashells")