Well, what I’d do is just see who has the most which is Bill and then for the other question I’d just subtract 7.8 - 7.2 which is equal 6 so the pH is greater by .6
3x-52=2x+2 (v.o.a)
3x-2x=2+52
x=54
Whole, integer, and rational
Maybe the money you owe someone
Add 5x + 5 and that is the bottom of it and the top stays 1
