Apackage of 4 mechanical pencils comes with 2 free erasers. if you get the total of 12 free erasers, how many packages of pencils did you buy?

What is 32+4 x (16 x 1/2) -2 show your work}

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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).