ruth is 6 years old
step-by-step explanation:
6 + 24 = 30, so 6/30 = .2
if you do 1/5 it also equals .2, so that is the answer.
y=3x+4
given the points a(0,4) and b(-4, -8)
eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)
(y-4)/x=-12/-4=3
answer: (-6,3)