Answer:
The first rental deal will be better after 4 hours
Step-by-step explanation:
First, model this situation with two equations:
[tex]y = 20 + 13.50x\\y = 6 + 17x[/tex]
In order to find when one deal surpasses the other, set the equations equal to each other.
[tex]20 + 13.50x = 6 + 17x[/tex]
Isolate variables
[tex]14 = 3.5x[/tex]
Divide both sides.
[tex]x = 4[/tex]