The following was taken from the 2009 annual report of H&R Block:

Marketable securities-available for sale: proceeds from the sales of available-for-sale securities were $8.3 million, $13.9 million, and $3.5 million during fiscal years 2009, 2008, and 2007, respectively. Gross realized gains on those sales during 2009, 2008, and 2007 were $0.7 million, $0.4 million, and $0.3 million, respectively; gross realized losses were $1.3 million, $0.1 million, and $0.1 million, respectively.

REQUIRED:

a. Describe the difference between trading securities and available-for-sale securities.

b. How is the company’s total comprehensive income affected by the dollar values reported in the footnote?

c. compute the cost of the securities sold during 2007, 2008, and 2009.