Answer:
270 degrees.
Explanation:
Don't be fooled by this question! I may seem like she needs to turn 90 degrees, but thats not what the question said. The question wants her to turn clockwise.
She will only need to turn 90 degrees if she is turning counterclockwise as she will be turning to her left. But, she needs to turn in the opposite direction.
The total number of degrees in a full turn is 360. She needs to turn 3/4 of the way to 360. So 3/4 times 360 is 270 degrees.
For a simpler way, you can just subtract 90 from 360 degrees.
Have a nice day! :)