At the airport car rental store charges $25 initial rental fee and $30 an hour tees car what is the total cost of renting a car for three hours

Intital fee to rent a car = $25

Fee charged per hour to ride the car = $30

Cost of renting a car for three hours :

= Intital fee + cost of renting the car for 3 hours

Thus, cost of renting the car for three hours = $115

Therefore, the cost of renting a car for 3 hours at the airport = $115

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees