The times for five sprinters

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Factor and solve to find roots x squared -x - 90 =0