Does anyone know this? I need help please

Find the slope of a line given the following two points

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

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4