Each of the three oldest children sleeps in a twin bed. they all need bed sheets. a brand of sheets is on sale for "but one get one at 50% off".if each sheet costs $18.00, how much will two sheets cost? how much will six sheets cost?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

An angle that measures between 90 and 180° is called a(,

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?