Edward earns $7.00 per hour for the first 40 hours he works per week, and twice this rate for overtime. If Michael earned $210 last week, how many hours did he work?
Options:  A) 43  B) 44  C) 45  D) 46  E) 47
$7*40 + $12*x = $210 --&gt; x = 5 hours.   Total working hours = 40 + 5= 
<gadget id="calculator">40 + 5</gadget>
<output>45</output>
45   Answer: 45.
<result>C</result>
Edward earns $7.00 per hour for the first 40 hours he works per week, and twice this rate for overtime. If Michael earned $210 last week, how many hours did he work?