HELP ASAP LAST QUESTION PLZ PLZ PLZ ANYBODY
Find the value of x

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)