please help! physics vector question in description.

Question

You're out walking the dog when suddenly your find yourself standing on a frictionless oil slick. The dog is gently pulling on the leash, giving a 4.7 Newton force due North. Simultaneously a strong wind is blowing, providing a 15.7 Newton force directly to the West.
What is the direction of the net force vector? Give your answer as the number of degrees North of West. Make sure you do the following in your answer: DO NOT write out a description of your angle. The text "North of West" is not necessary. DO NOT put your answer in terms of "West of North". This will be marked as incorrect. DO NOT indicate units. We will assume degrees. make your answer correct within 0.2 degrees put your answer in a form like one of these: #.#

Answer 1

I mean the person who wrote the question, not the student who submitted it here. :)

Answer 2

Given:

 

4.7 N due north

15.7 N west

 

In terms of degrees north of west:

 

θ = tan^-1(4.7 / 15.7) = 16.7°

 

In the form #.#, the answer is 16.7