Um help plez. it'd be great

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Draw a scaled copy of the circle using a scale factor of 2

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out