Value-mart is advertising a back-to-school sale on pencils. a pack of 30 sells for $7.97, whereas a 12-pack of the same brand cost for $4.77. which is the better buy? how do you know?

Solve |x| > -9 a) {x|x< -9 or x> 9} b) all reals c) no solution

An equation where variables are used to represent known values—function notation true or false

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.