A certain telephone company company charges 3.10 cents for the first 1/5 of a minute plus 0.40 cents for each additional 1/5 of a minute. What would this company charge for a talk time of 8 minutes long?	Choices:	A) 15.60	B) 16.0	C) 17.8	D) 18.7	E) 19.1
first 1/5 minute charge = 3.10 cents   rest of the minute = 8 - (1/5) = 39/5   charge for the rest of the minute = 39 *0.4= 
<gadget id="calculator">39 *0.4</gadget>
<output>15.6</output>
15.6   total charge= 3.10+15.6= 
<gadget id="calculator">3.10+15.6</gadget>
<output>18.7</output>
18.7 cents   Answer is 18.7.
<result>D</result>
A certain telephone company company charges 3.10 cents for the first 1/5 of a minute plus 0.40 cents for each additional 1/5 of a minute. What would this company charge for a talk time of 8 minutes long?