Tom is a salesman. He receives 25% of the price of the item sold as sales commission plus a fixed salary of $200 per week. Tom’s average weekly sales…

Tom is a salesman. He receives 25% of the price of the item sold as sales commission plus a fixed salary of $200 per week. Tom’s average weekly sales is 20 items with a standard deviation of 10. The average price of items Tom sells is $250. Tom works 46 weeks a year.

Tom’s average annual earnings is ________.?

The standard deviation of Tom’s annual income is,?