a$.$ Calculate the taxable income. $\backslash$begin$\{$tabular$\}\{|$l$|$l$|$l$|\}\backslash$hline Gross income & & $\backslash$$ $172,900\backslash \backslash \backslash$hline AGI & & $\backslash$$ $172,900\backslash \backslash \backslash$hline Greater of: & & $\backslash \backslash \backslash$hline Itemized Deductions: & & $\backslash \backslash \backslash$hline Medical Expenses & $0$ & $\backslash \backslash \backslash$hline Real Estate Taxes & $5,000$ & $\backslash \backslash \backslash$hline Mortgage Interest & $18,000$ & $\backslash \backslash \backslash$hline Charitable Contributions & $2,090$ & $\backslash \backslash \backslash$hline & $0$ & $\backslash \backslash \backslash$hline & $25,090$ & $\backslash \backslash \backslash$hline Standard Deduction & & $\backslash \backslash \backslash$hline & & $\backslash \backslash \backslash$hline Taxable income & & $\backslash$$ $172,900\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}$ Read the following letter and help Shady Slim with his tax situation. Please assume that his gross income is $\backslash (\backslash$$ $172,900\backslash )($which consists only of salary$)$ for purposes of this problem.

December $31,2025$

To the friendly student tax preparer:

Hi$,$ it's Shady Slim again. I just got back from my $55$th birthday party, and I$\text{'}$m told that you need some more information