The value of the digit 8 in this number is 80. the value of the digit 7 in this number is not 7

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1

Polynomial that can be factored as (3x-4)(3x+4)