Sam, Sara, Cora, Jace, Chase, Sally, Jack, Jacob, Mea, Alex, Lex, Sophie, Gavin, Coco, Lara, Stacy, Asia, Amie, Lulu, and Lea each had 6 balloons in their hands. As they were walking 3 balloons of each hands flew away. How many balloons do they have in their hands now?

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).

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Anyone know? will mark brainliest if correct!