Mary works in a restaurant a maximum of 70 hours. For the first 20 hours, she is paid $8 per hour. For each overtime hour, she is paid at a rate which is 25% higher than her regular rate. How much Mary can earn in a week? Choose the correct choice from the following answers:
A) 600
B) 620
C) 660
D) 320
E) 400
Mary receives $8(20)=$160 for the first 20 hours.   For the 50 overtime hours, she receives $8(0.25) +$8 = $10 per hour, that is $50(20)=$500.   The total amount is $160+$500 = $660   Answer 660 660.160+ 500= 
<gadget id="calculator">160+ 500</gadget>
<output>660</output>
$660   Answer 660 660.
<result>C</result>
Mary works in a restaurant a maximum of 70 hours. For the first 20 hours, she is paid $8 per hour. For each overtime hour, she is paid at a rate which is 25% higher than her regular rate. How much Mary can earn in a week?