Answer:
Following is the solution to this problem:
The inflation rate as a percentage:
=(4/80)*100
=5%
The cost of a theme park visit in 2016 dollars:
[tex]80(1+0.05)^{2}[/tex]
[tex]80(1.05)^{2}[/tex]
=88.20
The 2015 Price Index:
Consumer Price Index Formula = [tex]\frac{Cost of Market Basket in a Given Year}{Cost of Market at Base Year} * 100[/tex]
=(84/80)*100
=105
The 2016 Price Index:
=(88.2/80)*100
=110.25