The available balance online may not reflect all debit transactions or all checks that were written. Some recent debit transactions and check written may not have been posted to his account yet. The available balance would need to subtract any outstanding debit transactions and any written checks that have not cleared his account. This would yield the correct available balance.
Since 2+8 =10 you would just have 3 left to add so it would be 10+3=13
False. If x=-3 and y=-6 and you substitute them into the equation they do not add up
Vertical angles is an X but that's how you tell if they're vertical angles