It says graph triangle MEG with veritices M (1,1), E(5,3), and G (3,5) and its image

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e. g. 98.765).

X= 3y - 6 2x - 4y = 8 solve the system of equations using substitution. a) (-12,-2) b) (15,7) c) (21,9) d) (24,10)

Plz , will award brainliest find an equation for the line that goes through the points (5,-8) and (13,4)