Can someone tell me the answer to the questions for me

Answer this 30 points and brainliest!

For each proportion find the unknown number x 1/5/8=×/15

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