F(x) = x^2. What is g(x)?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool.how far is the ball from the opposite edge of the pool

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20