David and Ruby are engaged and plan to get married. During $2024,$ David is a full$-$time student and earns $$5,800$ from a part$-$time job. With this income, student loans, savings, and nontaxable scholarships, he is self$-$supporting. For the year, Ruby is employed and has wages of $$73,560.$

Click here to access the standard deduction table to use. Click here to access the Tax Rate Schedules. If an amount is zero, enter $"0".$ Do not round your intermediate computations. Round your final answer to the nearest whole dollar.

a$.$ Compute the following:

b$.$ Assume that David and Ruby get married in $2024$ and file a joint return. What is their taxable income and income tax? Round your final answer to the nearest whole dollar.

$\backslash$table$[[,$Married$],[$Gross income and AGI,Filing Jointly$],[$Standard deduction $($married$,$ filing jointly$),$$