Donna Ahern is the sole stockholder and operator of Omega, a motivational consult- ing business. At the end of its accounting period, December 31, 2009, Omega has assets of \($760,000\) and liabilities of \($240,000\). Using the accounting equation and considering each case independently, determine the following amounts:

a. Stockholders' equity, as of December 31, 2009.

b. Stockholders' equity, as of December 31, 2010, assuming that assets increased by \($120,000\) and liabilities increased by \($72,000\) during 2010.

c. Stockholders' equity, as of December 31, 2010, assuming that assets decreased by \($60,000\) and liabilities increased by \($21,600\) during 2010.

d. Stockholders' equity, as of December 31, 2010, assuming that assets increased by \($100,000\) and liabilities decreased by \($38,400\) during 2010.

e. Net income (or net loss) during 2010, assuming that as of December 31, 2010, assets were \($960,000\), liabilities were \($156,000\), and no additional capital stock was issued or dividends distributed.