Which model shows two equal expressions when the value of x is 4?

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).

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?