Answer:
The wave pool will cost less by $20.25.
Step-by-step explanation:
Given is -
Gale will buy 9 total tickets.
We will find the cost for all events.
Aquarium = $14.50 each
So, total for 9 tickets = [tex]14.50\times9=130.50[/tex] dollars
Wave pool = $16.75 each, but $12.25 each for groups larger than 4.
As it is a group of 9 people, it will cost $12.25 per person.
Total will be = [tex]12.25\times9=110.25[/tex] dollars
The difference between both is [tex]130.50-110.25=20.25[/tex] dollars
So, wave pool will cost less by $20.25.