Whats 0.07divided by 1.68

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).

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

Through non-collinear points there is exactly one plane.