Show that f(x)=(x-2)^3+8 is one to one algebraically

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

How do you solve a question like this?

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