18) Construct a Lorenz curve given that the bottom 20% have 5% of the income, 2nd 20% have 14% of the income, 3d 20% have 21% of the income, 4th 20% have 25% of the income, and the top 20% have 35% of the income. 19) Define and provide an example of a progressive tax, regressive tax, and flat tax. 20) What is tax incidence? 21) Define horizontal and vertical equity. 22) If a person earning $45,000 had $38,000 in taxable income, paid $14,000 in taxes, and received a raise of $5000 and paid 28% tax on it. What was this individual's nominal tax rate, effective tax rate, and marginal tax rate