Help me i will give brainliest and you get 30 points

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).

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge