Which answer best completes the following sentence? (2 points) is an example of physical change while is an example of a chemical change.

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).

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract