300
Gracie paid 8 dollars a box last month for 12 bags of beads. This month, one of the stores closed so the price of beads increased to 9 dollars a bag. If she buys 12 bags again this month, how much more does she spend than last month?
(a) 1 because 9-8=1
(b) 72 because 8x9 =72
(c) 12 because (12x 9) - (8 x 12) = 12
(d) 87 because (12x8)-9=87
(c) 12 because (12 x 9) - (8 x 12) = 12