Math: Answer Key for p.158

Answer Key
p.158 #5-10,14-16

5.  65.52
6.  $15.75
7.  0.4278
8.  7.99505
9.  365.4
10.  35 cards for $0.45 each costs more. ($15.75)

14.  The low estimate would be 5 x 9 = 45 which is still greater than 43.
15.  0.03654
16.  0.00084