Malcolm has $638.54 in his checking account. he must maintain a $500 balance to avoid a fee. he wrote a check for $159.50 today. write an inequality that would be used to solve for the least amount of money he needs to deposit to avoid a fee. 638.54 +159.50 − x ≥ 500 638.54 + 159.50 − x ≤ 500 638.54 − 159.50 + x ≥ 500 638.54 − 159.50 + x ≤ 500