A tax system allows people to earn a certain sum of income free of income tax. On income above this level, tax is levied at a constant rate. Which diagram correctly shows how marginal and average rates of tax vary with income? A rate of tax marginal ZLE average Ο income B rate of tax marginal average Ο income C rate of tax average = marginal income D rate of tax marginal average Ο income
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- [1] B
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