How do I do this accounting problem? I'm unsure how to do parts B and D

Two items are omitted from each of the following summaries of balance sheet and income statement data for two corporations for the year 2020, Tamarisk, Inc. and Pronghorn Enterprises. Determine the missing amounts. Tamarisk, Inc. Pronghorn Enterprises $126, 100 110,500 $167,700 70200 97,500 (c) 15600 (a) Beginning of year: Total assets Total liabilities Total stockholders' equity End of year: Total assets Total liabilities Total stockholders' equity Changes during year in stockholders' equity: Additional investment Dividends Total revenues Total expenses 208,000 156,000 52.000 234,000 65,000 169,000 (b) 32,500 (d) 31,200 279,500 227,500 130,000 71,500