Can you help me solve the percentage of 1.91?​

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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).

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us