Meghan starts with a balance of $750. Since she writes a check for $150, she is losing $150 dollars from her account.
$750 - $150 = $600
Then, she has a debit transaction of $135. That makes her lose $135 from her account.
$600 - $135 = $465
Her new balance in her checking account is $465 after the check and debit transaction, which is option B.
Let me know if you need any clarifications, thanks!
~ Padoru