How much will the bags cost and what size will they be?

There are two sizes of trash bags:  15-gallon trash bags are sold in a package of 10 bags for a cost of $12.50 and 33-gallon trash bags are sold in a package of 5 bags for a cost of $12.50.  The tags are the same price as the Gorham trash bags and come in a sheet of 5 tags.  A pink sheet with 5 tags will cost $6.25 ($1.25 each) and can be used on any trash bag up to 15 gallons.  A yellow sheet with 5 tags will cost $12.50 ($2.50 each) and can be used for any trash bag up to 33 gallons.