Find the product 0.31x 8

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

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).

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet