Five business finance question, risk and return, stock

I’m working on a Accounting exercise and need support.

Please answer these five finance question,I need the detail answer for all the questions. its about risk and return , stock.

Example question

Question 2: A stock had the following prices and dividends. What is the average return on this stock?

Year	Price (end)	Dividend
2017	$24.08	$.33
2016	$22.26	$.31
2015	$22.90	$.30
2014	$22.57	$.29