please answer questions 1-4

Chapter 5 1. One year ago, you purchased 300 shares of company A at $32.6 a share. During the past year, you received a total of $280 in dividends. Today, you sold your shares for $35.8 a share. What is your total return on this investment? 2. You purchase a stock at the beginning of the year for $76.20 a share. Your total return for the year was 12.6% and the dividend yield was 3.2%. What was the price of the stock at the end of the year? 3. Over the last four years, a stock produced returns of 14,9,-7, and 12 percent, respectively. What is the standard deviation of these returns? 4. A stock had returns of 11, 14, -6, and 7 percent over the past four years, respectively. What was the average arithmetic and geometric returns