Train a has a speed of 15 miles per hour greater than that of train b. if train a travels 150 miles in the same time train b travels 120 miles, what are the speeds of the two trains

It says factor each expression completely 8y+48

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

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{ {