Which expression is equivalent to 4(n + 5)?
4n
24n
4n + 9
4n + 20

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 you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.