Ted earns $13 an hour at theater . last week he worked h hours at the concession stand and 3 times as many hours at ticket counter

If you would like to know the expression for the amount of money William earned last week, you can calculate this using the following steps:
$13 per hourh hours ... at the concession standthree times as many hours = 3 * h hours ... at the ticket counter
h hours + 3 * h hours = 4 * h hours of work last week
4 * h * $13 = $52 * h
The expression for the amount of money William earned last week would be $52 * h.