$3\mathrm{.}2$ Julian Thomas: Waiter or Tax Expert?

Julian Thomas, who is single, goes to graduate school part$-$time and works as a waiter at the Bay Grill in San Francisco. During $2018,$ his gross income was $$20,700$ in wages and tips. He has decided to prepare his own tax return because he cannot afford the services of a tax expert. After preparing his return, he comes to you for advice. Here's a summary of the figures that he has prepared thus far:

Gross income:

$\backslash$table$[[$Wages$,$$$14,500$