X = -6 + y...so we sub in -6 + y for x in the other equation
x - 3y = 28
-6 + y - 3y = 28
-2y - 6 = 28
-2y = 28 + 6
-2y = 34
y = -34/2
y = - 17
x = -6 + y
x = -6 - 17
x = - 23
solution is (-23,-17)
180 I’m pretty sure look 1x10x100(cents)x18(dollars)/100 if it’s not that if it’s a not a pair of questions then it’s either 180 or 1,800
(fog)(x) = f[g(x)] ...................
Use the link that’s what helped me