What is 12.791 rounded to the nearest hundredth

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

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).