Answer:
[tex]20000*1.05^t[/tex]
Step-by-step explanation:
If the retail price in 1992 is $20,000
It increases at 5% per year
The Price After 1 year = 20000+ (5% of 20000) = 105% of 20000=20000*1.05
The Price After 2 years = [tex](20000*1.05)+(5\% \:of\: 20000*1.05)=(1.05)(20000*1.05)=(20000*1.05^2)[/tex]
Continuing in like manner, after t years
The retail price [tex]=20000*1.05^t[/tex]