2. A room is shaped like a trapezoid as shown.

(a) What is the area of the room? Use the formula . Show your work.

(b) Carpet costs $8.30 per square foot. How much will it cost to carpet the room? Show your work.

(c) Furniture covers 25% of the floor. How many square feet of carpet are covered by furniture? Show your work.

(Score for Question 3: ___ of 10 points)

3. The stem-and-leaf plot shows the cost of lamps at a department store.

(a) What is the median cost?

(b) Is there a mode? If so, what is it?

(c) What is the difference between the most expensive and least expensive lamps?

(d) How many lamps cost more than $20 but less than $40?

(e) What is the ratio of lamps that cost less than $40 to lamps that cost more than $40? Write the ratio in simplest form.