Simplify 2x + 8 + 4x + 5

If the measure of xyz is 81 what is the measure of yz

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

If sin(x) = 0 and cos(x) = 1, what is tan(x)?