A cheerleading squad practices 1 hour a day from Monday through Thursday for a competition on Saturday. How many hours would they need to practice on Friday in order to have practiced an average of 2 hours a day over the 5 days from Monday through Friday? Choose the correct answer
A) 4  B) 5  C) 6  D) 7  E) 8
Total number of hours practice from Monday through Thursday: 4*1= 
<gadget id="calculator">4*1</gadget>
<output>4</output>
4   total number of hours they will need to practice to average 2 hours a day over 5 days:  5*2= 
<gadget id="calculator"> 5*2</gadget>
<output>10</output>
10   Thus, they still need to practice   10-4= 
<gadget id="calculator">  10-4</gadget>
<output>6</output>
6 hours on Friday   6
<result>C</result>
A cheerleading squad practices 1 hour a day from Monday through Thursday for a competition on Saturday. How many hours would they need to practice on Friday in order to have practiced an average of 2 hours a day over the 5 days from Monday through Friday?