###Human: Ursula earns $8.50 an hour working in a restaurant. She works 8 hours a day. If she works 20 days a month, determine her annual salary., ### Assistant: Ursula earns 8 x $8.50 = $68 a day.
In a month, she earns 20 x $68 = $1360.
Therefore, Ursula's annual salary is 12 x $1360 = $16,320 
 So the answer is :  16320