How to solve shareholder's equity, end of year?

a.	Nowaks total assets increased during the year and total liabilities decreased in the following amounts.
		Increase in assets	$ 250,000
		Decrease in liabilities	80,000
	What is the amount of shareholders equity at the end of the year?
		Shareholders' equity, beginning of year
		Shareholders' equity, end of year
b.	During the year, Nowaks total liabilities decreased. The company reported net income, sold additional shares, and did not declare any dividends during the year.
		Decrease in liabilities	$ 100,000
		Net income	90,000
		Issuance of shares	125,000
	What is the amount of total assets at the end of the year?
		Shareholders' equity, end of year
		Total liabilities, end of year
		Total assets, end of year
c.	Nowaks total assets decreased during the year and shareholders equity increased.
		Decrease in total assets	$ 90,000
		Shareholders' equity increase	120,000
	What is the amount of total liabilities at the end of the year?
		Total assets, end of year
		Shareholders' equity, end of year
		Total liabilities, end of year