What is 1/9 as whole number

Which fraction below is equivalent to 10/12?

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16