(Answer needed quickly)What is the y-intercept of this graph?

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

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?