Do you know how to solve this with work to back it up?

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8