Given the following information answer the question.

Population Companies with 500+ employees Lubbock 290,805 18 Cumulative Not available payroll of large companies Median $44,139 household income Universities Texas Tech with athletic Football teams Amarillo 262,056 22 Not available $47,053 Stadium capacity:60,454 Home games: 6 Suites: 76 Baseball Stadium capacity:4,368 Home games: 28 West Texas A&M Football Stadium capacity: 20,000 Home games: 5 Suites: 0 Baseball Stadium capacity: 6,100 Home games: 28 Suites: 0 Suites: 0 Basketball Basketball Arena capacity: 15,000 Arena capacity: 4,7000 Home games: 12 Suites 0 Semi- professional teams Home games: 17 Suites: 24 Lubbock Christian University Baseball Stadium capacity:6,362 Home games: 28 Suites: 0 Basketball Arena capacity: 1,950 Home games: 12 Suites: 0 West Texas Roller Derby Amarillo Bulls . Home games: 3 Capacity: 2,000 Suites: 0 Capacity: 2,848 Home games: 60 Suites: 0 Amarillo Venom Capacity: 2,848 . Home games: 7 Suites: 0 a. Calculate the per capita sales required to sell out in each city if the baseball team builds a stadium with 9,000 people capacity and plays 38 home games a year (4 points)