The nation of Fishkasar has a tax rate of 5% on the first 20,000 walops (the national currency) of taxable income, then 15% on the next 30,000 walops, then 30% on all taxable income above 50,000 walops. Fishkasar provides a 3,000-walop exemption per family member. Jamil's family has three members and earns 60,000 walops per year. Calculate the family's marginal and average tax rates. Show your work to receive credit. (3 point for the marginal tax rate, 3 points for the average tax rate)