Suppose that y varies directly with x and inversely with z, and y = 8 when x = 4 and z = 4. Write the equation that models the relationship. Then find y when x = 9 and z=3

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