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
5) all you have to do is calculate which would be 2.9166...
6) 65.898
3 times 7= 21 times three =63
Answer: Number of bags of 8. = 33
Number of bags of 10. = 31
Step-by-step explanation:
Let x = Number of bags of 8.
y = Number of bags of 10.
As per given.
(i)
(ii)
Put value of x from (ii) in (i)
Put this in (i), x= 31+2=33
Hence,
Number of bags of 8. = 33
Number of bags of 10. = 31
Answer: 3
Step-by-step explanation
9 divided by 2 =4.5
3 divided by 2 = 1.5
so then we do 4.5 divided by 1.5=3 so the answer is 3
