If anyone know 12th grade any kind hearted ones out there

Which function has the same domain as y=2x

What is the absolute value of the complex number -4-sqrt2i

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