Find the arithmetic series that relates to g(x)=x^2+8x

Add or subtract polynomial : –12qr? +13rq?

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).

What could explain what happened when the time was equal to 120 minutes