Which equation can be used to calculate the area of the shaded triangle in the figure below?

a rectangle is shown with a width of 6 ft and a length of 16 ft. there is a diagonal line through the rectangle, and the bottom half is shaded in grey.

Tom and lilly rented a house for $12,000 last year. at the start of the year they bought the house they had been renting directly from the owner for $250,000. they believe they could rent it for $12,000 this year, but stay in the house. how much does tom and lilly’s decision to buy the house change gdp? a. it reduces gdp by $12,000 b. it does not change gdp c. it raises gdp by $238,000 d. it raises gdp by $250,000