It costs $2 for the first 1/5 hour to use the laundry machine at the Laundromat. After the first ¼ hour it costs $12 per hour. If a certain customer uses the laundry machine for 2 hours and 15 minutes, how much will it cost him?
Pick.
A) $25.	B) $26.	C) $29.	D) $30.	E) $31.
2 hrs 15 min = 135 min   First 12 min ------&gt; $2   Time left is 135 min...   Now, 60 min costs $ 12   1 min costs $ 12/60   135 min costs $  12/60*135= 
<gadget id="calculator"> 12/60*135</gadget>
<output>27</output>
&gt; $ 27   So, Total cost will be $27 + $2 =&gt; $ 29   Hence answer will be $29.27 +  2= 
<gadget id="calculator">27 +  2</gadget>
<output>29</output>
&gt; $ 29   Hence answer will be $29.
<result>C</result>
It costs $2 for the first 1/5 hour to use the laundry machine at the Laundromat. After the first ¼ hour it costs $12 per hour. If a certain customer uses the laundry machine for 2 hours and 15 minutes, how much will it cost him?