Look for the y-intercept
since we know the slope is 3 we just going to plug in
-5=3(1)+y
-5-3=y
so the y-intercept is 8 now you can find the equation
y=3x-8
If there are 30 flavors and you can have three of them then it is 30^3 who's his 2700 I think that is correct
I hope that is helpful