Please answer A and B thank you!!

Marginal tax rates Using the tax rate schiodule gwon here (i). perfotm the following: a. Finid the marginal tix rate for the foriowing levels of sole proprietorship eamings before taxes: $14,800;$61,000;$91,900;$162,000;$241,000;$450,400; and $1 millo0 b. Plot the marginat tax rakes (measured on the y-axis) against the pretax income levers (measured on the x-axis) More info