Help please last question, please I need the naswer

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle