Estimating taxable income, tax liability, and potential refund Charlotte Taylor is 24 years old and single, lives in an apartment, and has no dependents. Last year (2018) she earned $50,000 as a sales assistant for Office Fumiture Rentals; $6,830 of her wages was withheld for federal income taxes. In addition, she had interest income of $169. The standard deduction in 2018 was $12,000 for single. Note that personal exemptions were suspended for 2018. Refer to Exhibit 3.3 for the appropriate tax rate schedule. 3. Estimate her taxable income. $ b. Estimate her tax liability. Round the answer to the nearest cent, Use unrounded values in later calculations. (Hint: Use the tax rate schedules given in Exhibit 3.3 to determine her tax liability.) $ c. Estimate her tax refund or tax owed. Enter tax owed, if any, as negative amount. Round the answer to the nearest cent. 4