I need help i have 5 minutes left of class i will give brainest if answer make sure to show poof

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

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.

With alll of except for the 2 that i did already