URGENT !! please please help answer this graph

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons

How to find the exponential function y=ca^x, with points (1,2) and (2,1)