Solve 19. a, b, and c as well as 20 a and b. you!

One positive number is 9 more than twice another. if their product is 95, find the numbers

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.

Ineed to know the answer to this algebra question.