please help with bith a and b

Some balance sheet information is shown here all values in millions of dollars) a. What change in the book value of the company's equity took place at the end of 2018? b. Is the company's market to book ratio meaningful? Is its book debt-equity ratio meaningful? Explain CA a. What change in the book value of the company's equity took place at the end of 2018? The book value of equity by 5 billion from the end of the previous year, and was three decimal places) (Select from the drop-down menus and round to Data table -X 3/31/2019 12/31/2018 9/30/2018 6/30/2018 232 460 293 401 374 60 1.128 128 979 744 255 385 437 53 1,130 300 362 342 43 1,047 97 991 748 835 3,718 306 45 1,043 200 1,052 742 Balance Sheet: Assets Current Assets Cash and cash equivalents Net receivables Inventory Other current assets Total Current Assets Long-term investments Property, plant, and equipment Goodwill Other assets Total Assets Liabilities Current Liabilities Accounts payable Short/current long-term debt Other current liabilities Total Current Liabilities Long-term debt Other liabilities Total Liabilities Total Shareholder's Equity Total Liabilities and Shareholder's Equity 995 736 914 3.775 777 797 3,756 3,834 876 410 1,467 2 922 173 580 288 1,286 2.381 435 4,102 - 346 3.756 1,469 2,124 574 4.167 - 449 3,718 1.095 474 559 2.128 1.647 3,775 1,268 475 551 2.294 1540 3,834