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For a non-resident:

For a resident:

We want to know the number of days
such that the two costs are equal ie 
To do this set the two costs equal to each other:


And solve for d:




The costs will be equal when a resident and a non-resident each use the beach for 12 days.
Answer:
p+_(n) + 70%
Step-by-step explanation:
finished
Answer:
69.12 in, or 22pi in terms of pi
Step-by-step explanation:
Circumference of circle formula: 2piR
Radius of 22 in diameter is 11 in
So, 2pi(11) is about 69.12 in
Subtract the two numbers and you will get the answer