Triangle LMN is similar to Triangle TSU. What's the value of x?

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.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Would greatly appreciate these 3 answers