The following inequalities give information on your credit scores. Let x represent your credit score.
• If x > 700, your credit score is excellent.
• If 680 < x < 700, your credit score is good.
• If 620 < x < 680, your credit score should be watched carefully.
• If 580 < x < 620, your credit score is low
• If x < 580, your credit score is poor.
If Mary Ann’s credit score is low, but she receives 40 points for paying off some delinquent debts, is it possible that her credit rating is now good? Explain.