Expand and combine like terms.
(4 + 7a²)2 =

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).

If eh = hg and hg=16, find the diameter of k

The verbal translation for the difference of m and 7 increased by 15