10/√149 PLZ HELP IVE BEEN STUCK ON THIS PROBLEM FOR AGES

What is the solution to the equation 9^(x+1) =27

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

I'm confused on this could anyone me and show me what i need to do to solve it.