MCQOPTIONS
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				| 1. | 
                                    When my income was $100,000, I paid $10,000 in taxes. When my income became $200,000, I paid $40,000 in taxes. My marginal tax rate is: | 
                            
| A. | 10% | 
| B. | 20% | 
| C. | 30% | 
| D. | 40% | 
| Answer» B. 20% | |