1. Using number line find the values: a) (+3)+(+6) b) (+3)-(-6) c) (- 6)+(-3) 2.Draw a number line and take an example to verify commutative law of addition . 3.Draw a number line and take an example to verify commutative law of subtraction.

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).

What is the binomial expansion of (2x-3)^5

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?