3(4x^2y^3 + 2x^3) – 4(9x^3y^2 – 6x^2y^3)
How to solve pls?

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.