Find the volume and surface area of each figure below. Can someone help me do this pls I really need to bring my grade up

Which of the following is true for the relation f(x)=2x^2+1

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Factor the polynomial by its greatest common monomial factor.