Express each answer in the simplest form in terms of the given variable. 1. The base and height of a triangle are consecutive odd integers, and the height exceeds the base. If the base is b, find the area of the triangle.

2. At 2:00 PM a train left a station traveling east at R mi/h. At 3:00 PM a second train headed west from the station at a rate of 20 mi/h faster than the first.

3. Seth sold 16 to a school play. Of these, A were adults’ tickets at $3.75 each. The rest were children’s tickets at $2.59 each.