Required information Problem 3-51 (LO 3-4) The following information applies to the questions displayed below] Tawana owns and operates a sole proprietorship and has a 37 percent marginal tax rate. She provides her son, Jonathon, $10,500 a year for college expenses. Jonathon works as a pizza delivery person every fall and has a marginal tax rate of 15 percent. Problem 3-51 Part-c c. If Jonathon worked for his mother's sole proprietorship, what salary would she have to pay him to generate $10,500 after taxes (ignoring any Social Security, Medicare, or self-employment tax issues)? (Round your answer to the nearest whole dollar amount.)