The length of a swing is 2.1m if the length of the arch that is made by the swing is 4.4m calculate the angle swept by the swing

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

Ineed to know the answer to this algebra question.

What is the solution to the equation below? 3/x-2+6=square root x-2 +8