Respuesta :

Answer:

9 hours

Step-by-step explanation:

Hi,

11 hours = 209 dollars

Divide 11...

1 hour = 19 dollars

To get from 19 to 171 multiply by 9.

9 hours: 171 dollars.

She has to work 9 hours.

I hope this helps :)

lakshmipulivarthi

Answer:

9 hours

Step-by-step explanation:

rate: $209/h11 = $19 per 1 hour

How many hours?: 171/19 = 9 hours