A local store sells boxes of pens. The cost of a box of pens and the number of pens in the box are related. You need 39 pens. Identify the independent variable in the relationship.
What is the independent variable?

What’s the domain of this function? fastttt

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4? o a. 8a oc. 16 t d. 8

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.