Solve for r.
- 18 = 9 + 9r

What is the perimeter of square abcd? units units 28 units 37 units

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?

The area of each triangle is 7 square units. the surface area of the triangular prism is