Can someon help me find the value of CF and C

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.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Factor the expression using gcf 9b+45