Answer :
[tex]A:y=40+30x= \\ y=30x+40 \\ \\ B:y=30(5)+40= \\ y=150+40= \\ y=190 \\ \\ C:(115)=30x+40= \\ 75=30x= \\ \frac{75}{30} =x \\ x= \frac{5}{2} = \\ x=2.5[/tex]
y=30x+40
$190
2 hours 30 minutes
y=30x+40
$190
2 hours 30 minutes