Answer:
[ where
is number of months]
Step-by-step explanation:
Pool pass cost for first month =$30
Pool pass cost after first month = $15 for each month
The total amount charged by the pool can be expressed as a function where
represents the number of months.
This can be simplified by using distribution.
Take 15 as greatest common factor.
∴
For
∴ Amount charged by pool for 12 months = $195