How much 50% of 56 is greater than 30% of 50? Choose the correct choice from the following:
A) 18
B) 99
C) 13
D) 55
E) 71
(50/100) * 56 – (30/100) * 50   28 - 15= 
<gadget id="calculator">28 - 15</gadget>
<output>13</output>
13   Answer: 13
<result>C</result>
How much 50% of 56 is greater than 30% of 50?