Noah and Kate's are shopping for new guitar strings in a music store Noah buys two packs of strings Kate buys two packs of strings and a music book the book cost $16 and the total cost is $72 how much is one pack of strings
the strings cost $14. you would take the total cost ($72) and subtract the cost of the book ($16) and you would get $56. you would then divide 56 by the number of book bought (4 in all) and you would get $14.
