Write a function rule for the table

What is this inequality notation? t is less then or equal to 2

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

Can some one explain this i got sent this. is this a threat i’m scared