7. Roxie's personal tax rates are shown below. Her income last year was $296,000 and the first $16,000 earned was tax-exempt, A. How much income tax will Roxie pay? B. Calculate the marginal tax rate. C. Calculate the average tax rate. D. How many dollars of tax will she pay, in the third bracket? Income Tax rate First $45,225 25.00% over $45,225 up to $47,630 27.00% over $47,630 up to $95,259 32.00% over $95,259 up to $129,214 38.00% over 129,214 up to $147,667 10.00% over $147,667 up to $210,371 43.00% over $210,371 47.00%