It costs $18 for the first 1/2 hour to rent a bike. After the first 1/2 hour it costs $10 per hour. If a certain customer uses the bike for 2 hours, how much will it cost him?	Pick one
A) $12 B) $45 C) $33 D) $95 E) $30
2 hours = 120 minutes   First 30 min ------&gt; $18   Time left is 90 min...   Now, 60 min costs $ 10   1 min costs $ 10/60   90 min costs $  10/60*90= 
<gadget id="calculator"> 10/60*90</gadget>
<output>15</output>
&gt; $ 15   So, Total cost will be $15 + $18 =&gt; $ 33   The answer will be ($33) $ 3315 +  18= 
<gadget id="calculator">15 +  18</gadget>
<output>33</output>
&gt; $ 33   The answer will be ($33) $ 33
<result>C</result>
It costs $18 for the first 1/2 hour to rent a bike. After the first 1/2 hour it costs $10 per hour. If a certain customer uses the bike for 2 hours, how much will it cost him?