For gym class, gracie keeps a record of how many miles she runs. for the first half of the semester she runs 23 miles, and her grand total at the end of the semester is 50 miles. write an equation to model this situation.

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?