Accounting Equation Alex Hayden is the sole stockholder and operator of Elevate and Succeed, a motivational consulting business. At the end of its accounting period, December 31 , 20Y7 Elevate and Succeed has assets of $820,530 and liabilities of $259,290. Using the accounting equation and considering each case independently, determine the follow amounts: a. Stockholders' equity, as of December 31,20Y7. b. Stockholders' equity, as of December 31,20 Y, assuming that assets increased by $129,640 and liabilities increased by $77,950 during 20 \% c. Stockholders' equity, as of December 31,20Y8, assuming that assets decreased by $64,820 and liabilities increased by $22,970 during 20Y8. d. Stockholders' equity, as of December 31,20r8, assuming that assets increased by $108,310 and liabilities decreased by $41,030 during 20Yg. e. Net income (or net loss) during 20Y8, assuming that as of December 31, 20v8, assets were 51,033,870, lobilities were 5168,210 , and there were no dividends and no additional common stock was issued