Pencils are sold in boxes of 10, erasers are sold in boxes of 14, a teacher wants to buy the same number of pencils and erasers. work out the smallest number of boxes of each item she should buy. what' s the answer? ? i don't get it

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