Please can someone help me photos are attached ive worked the first one out

I'll give brainliest if you answer right : )

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85