to rent a certain meeting room a college charges a registration fee of $15 and an additional fee of $4 per hour . the chemistry club wants to spend less then $39 on renting the room . what are the possible numbers of hours the chemistry club could rent the metting room

15. jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {