How would one find the Unit Rate of Change?

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

The sum of two numbers is 17 and their different is 5. find one' answers

Find x to the nearest tenth.a) 9.3b) 9.4c) 9.5