Timmy Tappan is single and had $$179,000$ in taxable inctome. Using the rates from:Table: $2\mathrm{.}3$ in the chapter, calculate his income taxes.

a$.$ What is the average tax rate? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

b$.$ What is the marginal tax rate? $($Do not round intermediate calculations and enter your answer as a percent rounded to the nearest whole number, e$.$g$.,32.)$

Answer is complete but not entirely correct.

$\backslash$table$[[$a$.$ Average tax rate,$23\mathrm{.}158,\%$