Answer:
$640
Step-by-step explanation:
3 checks at $120 each = 3 x 120 = $360
This will reduce the balance so we should treat it as -360
2 paychecks at 240 = 2 x 240 = $480
This will increse the balance so we should treat it as +480
Net balance = 520 - 360+480=640
Balance = $640