PLEASE HELP ASAP! 10 POINTS!!
You received a $100 gift certificate to a clothing store. The store sells T-shirts for $15 and dress shirts for $23. You want to spend no more than the amount of the gift certificate. You want to leave at most $5 of the gift certificate unspent. You need at least one dress shirt. What are all of the possible combinations of T-shirts and dress shirts you could buy?