Mrs. Schirmer rolls two number cubes and finds their sum. What is the probabilty that she will roll a sum of 7 or a sum of 9? As shown below, there are 36 outcomes when you roll 2 dice.

Based on what i know about mean, this doesn't add up.

In what form is the following linear equation written y=9x+2

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x