How do i find the area of a triangle

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

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.

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?