***

Correct answers will receive 1 mark.  Incorrect answers will

receive -0.75 mark.  An answer left blank will receive 0 marks.  So decide

carefully before you answer.***

Kristin's family loves tomatoes.  This summer Kristin must decide whether to buy tomatoes from the store or to grow her own tomatoes.  If she buys tomatoes from the store, the cost for the summer would be $120.  If she grows tomatoes the seeds will cost $3 and they will taste much better, however Kristin will have to spend about two hours per week taking care of the plants.  If Kristin chooses to buy tomatoes from the store her opportunity cost will be the other things she could have bought with $117, plus the lost enjoyment of the additional deliciousness of home grown tomatoes.