Robert Sampson owns a townhouse valued at $180,000 and still has an unpaid mortgage of $145,000. In addition to his mortgage, he has the following liabilities: Visa $730 Mastercard 330 Discover card 530 Education loan 4,500 Personal bank loan 800 Auto loan 5,500 Total $12,390 Robert's net worth (not including his home) is about $34,000. This equity is in mutual funds, an automobile, a coin collection, furniture, and other personal property. a. What is Robert's debt-to-equity ratio? (Round your answer to 2 decimal places.) Debt-to-equity ratio b. Has he reached the upper limit of debt obligations? Rrev 3 of 10 Wext >