Evaluate b - 2a - c for a = -7, b = 3 and c = -9

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides.should be his answer