Answer=B
We can see this by looking at the graph. For example, for y=20.
Graph A y=20 x≈2.5
Graph B y=20 x≈6
If y=childrens tickets=$6
and
x=adult tickets=$8
Then for graph a...
y=20
20*6=120
x=2.5
8*2.5=20
x+y=120+20=140
While for graph b...
y=20
20*6=120
x≈6
6*8=48
y+x=120+48=168
So graph b fits the data's no more than $172 closer.
