Express the volume of a cone, v, as a function of its radius, r, if the radius is 1/3 of the height.
i have tried (1/9)*pi*r^2 but it did not work.

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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.

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.