Help me PLZZ it’s worth 20 points

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.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?