Henry earns $120 a week from his job. His income increased and now makes $180 a week. What is the percent increase?  Pick one:
A) 70%
B) 60%
C) 50%
D) 40%
E) 30%
Increase = (60/120)*100 = (1/2)*100= 
<gadget id="calculator">(1/2)*100</gadget>
<output>50</output>
50%.   50%
<result>C</result>
Henry earns $120 a week from his job. His income increased and now makes $180 a week. What is the percent increase?