JC recenty graduated from veterimary school and opened her own professional practice. This year, her net profit was $22,000. COmpute JC's after-tax income from her practice assuming:

a. Compute JC's after-tax income from her practice assuming her self-employment tax is $3,109, and her marginal income tax rate is 25 percent.

b. What percentage of the federal tax burden on JC's business income is represented by the self-employment tax?