Final answer:
The total return on the investment is $2800, and the annual return is $560.
Step-by-step explanation:
To calculate the total return on the investment, we need to find the difference between the selling price and the original cost of the stock. In this case, the original cost of 100 shares of XYZ stock is $70 per share, so the total cost is $70 x 100 = $7000. The selling price is $9800, so the total return is $9800 - $7000 = $2800.
The annual return can be calculated by dividing the total return by the number of years the investment was held. In this case, the investment was held for 5 years, so the annual return is $2800 ÷ 5 = $560.