Evaluate the expression 2a + 3 when a = 10

Which system of linear inequalities is represented by the graph?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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?