Estimate the sum of 502 and 47 by rounding both values to the nearest ten. what is the best estimate of the sum?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

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).