What is the standard form for 7x + 3x^2

What is a possible solutions of the x> 3?

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

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20