Final answer:
Wilma's taxable income is $2,250.
Step-by-step explanation:
To determine Wilma's taxable income, we need to consider both her interest income and earned income. The first step is to add her interest income of $2,700 to her earned income of $600, which gives us a total income of $3,300. However, since Wilma is claimed as a dependent on her daughter's tax return, the standard deduction for her filing status is $1,050.
Therefore, her taxable income is the total income minus the standard deduction, which is $3,300 - $1,050 = $2,250.