if tim had lunch at $ 50.50 and he gave 10 % tip, how much did he spend?
Choose one:	A) $ 30.60	B) $ 60.60	C) $ 70.60	D) $ 55.55	E) $ 50.60
<gadget id="calculator">50.5 * 10</gadget>
<output>505</output>

<gadget id="calculator">505 / 100</gadget>
<output>101/20 = around 5.05</output>

<gadget id="calculator">50.5 + (101/20)</gadget>
<output>55.55</output>

<result>D</result>
if tim had lunch at $ 50.50 and he gave 10 % tip, how much did he spend?
add(50.50, divide(multiply(50.50, 10), const_100))
"the tip is 20 % of what he paid for lunch . hence tip = 20 % of 50.50 = ( 10 / 100 ) * 50.50 = $ 5.05 total spent 50.50 + 5.05 = $ 55.55 correct answer d"