The length of a rectangle is 3 meters less than twice it’s with right in equation to find the length of a rectangle?

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).

Which of the following expressions is equal to 2x^2+8

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?