Answer:
The administration fee is $60. Option D.
Step-by-step explanation:
A permit purchased for 12 months costs = $660
A permit purchased for 15 months costs = $810
The difference in 3 months costs = 810 - 660
= $150
Cost of one month permit = 150 ÷ 3 = $50
Monthly fees of the parking permit = $50
Yearly fees of the parking permit = $50 × 12 = $600
One time administration fee = 660 - 600 = $60
The administration fee is $60. Option D.
