Government G levies an income tax with the following rate structure:

Percentage Rate	Bracket
6%	Income from 0 to $30,000
10	Income from $30,001 to $70,000
20	Income from $70,001 to $200,000
28	Income in excess of $200,000

Required:

1. Taxpayer As taxable income is $138,000. Compute As tax and average tax rate. What is As marginal tax rate?
2. Taxpayer Bs taxable income is $335,500. Compute Bs tax and average tax rate. What is Bs marginal tax rate?