During low tide, the beachfront in some places is about 350 from the ocean to the homes . high tide can change the width of a beach at a rate of -17 feet each hour . it takes 6 hours for the ocean to move from low to high tide . what is the change in the width of the beachfront from low to high tide ?

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{ {