ITS NOT THE ONE I MARKED I ACCIDENTLY PRESSED IT BUT PLEASE HELP

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).

Given the graphed function below which of the following orders pairs are found on the inverse function

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years