( 8th grade math ) please help this is a test

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.

What is the value of f(x) = 2.2 for f(-2)?

Determine the area of a triangle with (see picture below)