How do I write a equation for this?

Match each inequality to the number line that represents its solution

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

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?