add 10% of 30 and 15% of 50.  Choices:	A) 9.5	B) 10.5	C) 11.5	D) 12	E) 15
10% of 30 + 15% of 50   30*10/100+50*15/100   3+7.5= 
<gadget id="calculator">3+7.5</gadget>
<output>10.5</output>
10.5   answer 10.5
<result>B</result>
add 10% of 30 and 15% of 50.