A sole proprietorship earned taxable income of $105,000 during 2021. The proprietor earned no other income. According to the 2021 tax table for individuals shown below, what was the proprietor's income tax expense in 2021 ? Ignore the standard deduction. (Enter your answer to the nearest penny. Do not enter the dollar symbol or any commas. For example, if your answer is $1,234.56789, enter 1234.57 . Do not worry if Canvas adds commas or truncates trailing zeroes.)