Ace alexia plays professional tennis for a living, but in spite of her big first serve, she is not very successful. during the last year, ace could have earned $75,000 as a tennis instructor at the atlanta tennis club. she would have spend $7,000 on meals, paid rent on a condo in atlanta at $800per month, and made car payments of $300 per month. instead, she remained a pro and won $100,000 in prize money in various tournaments around the country. in doing so, she spent $12,000 on transportation and lodging and paid her coach/trainer $10,000 for the year. she also spent $7,000 on meals, paid rent on her condo in atlanta at $800per month, and made the payments on her car of $300 per month. ace’s opportunity cost of playing tennis last year was