$7 was paid to park the car for 3 hours.
3 hours Β cost $7 to park
1 hour Β = Β $ (7/3)
So every 1 hour cost $(7/3)
Therefore cost in dollars, Β c Β = Β (7/3)*p
Therefore c = (7/3)p, Β Β where c is the cost in dollars of parking and p is the number of hours.
