Economists define the disposable annual income for an individual by the equation D = (1 - r)T, where T is the individual's total income and r is the net rate at which he or she is taxed. What is the disposable income for an individual whose income is $20,000 and whose net tax rate is 31%?
?
A. $6,200
B. $47,600
C. $20,000
D. $13,800
E. $33,800
Answer: D
Mathematics
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