Answer:
a is proportional to b
a=kb
k is proportionality constant
k =a/b =3/12 =1/4
k=1/4 = a/b=a/18
1/4=a/18
a=18/4 =9/2 =4.5 answer
18x-24xy
You have to find a factor that can go into both variables, in this case 9x
The answer is 9x(2-4y)
:)
They will pay 46.60 a month because 460+100=560 and 560/12=46.6
