A basketball player practices 2 hours a day Monday through Friday. How many hours must he practice Saturday and Sunday combined if he wants to practice an average (arithmetic mean) of 3 hours a day for the seven day week?	Choose the correct choice from the following answers
A) 8	B) 9	C) 10	D) 11	E) 12
Total number of hours practiced Mon through Fri: 5*2= 
<gadget id="calculator">5*2</gadget>
<output>10</output>
10   Total number of hours that will be practiced in a 7 day week considering 3 hours a day average:  7*3= 
<gadget id="calculator"> 7*3</gadget>
<output>21</output>
21   thus   21-10= 
<gadget id="calculator">  21-10</gadget>
<output>11</output>
11 hours still need to be practiced (on Sat and Sun combined)   11
<result>D</result>
A basketball player practices 2 hours a day Monday through Friday. How many hours must he practice Saturday and Sunday combined if he wants to practice an average (arithmetic mean) of 3 hours a day for the seven day week?