Jill works as a waitress at the local diner where she earns an hourly wage of $10.00 per hour and a standard tip rate of 40% of the cost of the orders she serves. If she worked four 16-hour shifts this week and averaged $40 in orders per hour, how much did Jill earn this week? Select
A) 280	B) 300	C) 1664	D) 350	E) 400
Jill earns 10 dollars/hour and the hourly tip is (2/5)*40.   Jill thus earns 10*16+16*16 per day(or 10(16)+16(16)=26(16)=416).   Jill has worked for 4 days -&gt; 416*4=1664.   This matches answer choice 1664.
<result>C</result>
Jill works as a waitress at the local diner where she earns an hourly wage of $10.00 per hour and a standard tip rate of 40% of the cost of the orders she serves. If she worked four 16-hour shifts this week and averaged $40 in orders per hour, how much did Jill earn this week?