Answer
$52,700
Work Step by Step
The gift from your grandmother is not taxable income since it is less than ${$13,000}$.
There are two members in your household, so your reduction is $2\times{$3,650} = {$7,300}$
Subtracting these deductions from your gross income of ${$65,000}$, your taxable income is ${$52,700}$.
