Required Perform each of the following. (a) Calculate the debt to assets ratio for each year. (b) Calculate the cash debt coverage for each year. (Note: Total liabilities at year-end 2020 were $7804 million.) (c) Discuss Energy Limited's solvency in 2022 versus 2021. (d) Discuss Energy Limited's ability to finance its investment activities with cash provided by operating activities, and how any deficiency would be met