What is the volume of a pyramid that has a square base measuring 4 feet and a height of 7 feet? Round to the nearest hundredth, if needed. 336 cubic ft
37.33 cubic ft
47.33 cubic ft
112 cubic ft

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).

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

It says factor each expression completely 8y+48