Beth noticed that she had $6 in her piggy bank after 2 days of washing dishes for her grandma, and $9 after 5 days. She graphed the information as two points: (2.6) and (5.9).

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