Question

while shopping you note the average price for a cd is 8$ including tax.you have $12 in poket about how many cds can you buy

Answer 1

You can only buy 1 Cd because 1 cd is 8 dollars, and 8 goes only once into 12. You keep the remaining.

Answer 2

You can only buy 1 CD using $12 because $12 minus $8 is $4 and $4 is not enough for another CD.