What is the ratio 3:11

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.

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?