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John Smith Enterprises presented the following total debt ratios: Total debt ratio for 2019 = (45362-17378)45362 =2798445362 = 0.62 Total debt ratio for 2018 = (63949-17378)63949 =4657163949 = 0.73 Based on this information, answer the following questions, a. What was the cause of the change in the total debt ratio from 2018 to 2019? (7 points) b. What can you say about the solvency of the company? (7 points)