Please help and show your work.

Nine more than four times a number is the same as one less than twice the number. find the number?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.