On February 3, 2010, Microsoft stock sold for $28.50 per share, Intel for $19.50 per share, and Dell for $13.50 per share. At these prices, Juanita, Debbie, and Dawn each purchased shares in these three companies as shown in the table.

	Microsoft	Intel	Dell
Juanita	35	45	25
Debbie	30	40	35
Dawn	25	35	40

(a) Express the price per share of each stock on February 3, 2010, as a 1x3 matrix "A" Be sure to label the row and columns.

Microsoft Intel Dell

A= 02/3/2010 [ ____?_____. ____?____. ____?_____]

(b) Express the shares purchased of the three stocks by the three investors as a 3x3 matrix B. Be sure to label the rows and columns so you can answer part (c).

			Juanita	Debbie	Dawn
B =	Microsoft
	Intel
	Dell

(c) Find AB and interpret the entries.

AB = [ ____?_____. ____?____. ____?_____]