Answer:
$11.72
Step-by-step explanation:
The equation for his transactions could be ...
(initial amount) + $30.25 - 2(2.35) -6.05 -6.37 = $24.85
initial amout +$13.13 = $24.85
initial amount = $11.72 . . . . . . . . subtract 13.13
Gary had $11.72 before cashing the check.