Derivative : y=[(1+x^2)arctgx-x]/2

Can someone answer this question? : )

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.

Evaluate the expression. (9 + 5)(3 + 2)0