Answer:
(-3)² = 9
Step-by-step explanation:

circumference 14 pi but with pi 43.96
are = 153.94 with pi but without it is 49 pi
So, let's first focus on the first year:
the population then would be: 23000* (100+2)%
100% is the old population the 2% is the incease, so in total it's 102%, or 1.02 - the same number written differently.
So it will be 23000*1.02
After two years it will be 23000*1.02*1.02, and so on
so after x years it will be:
y=23000*
30 * 25 = 750
750/60 = 12.5
x = 12 hours and 30 minutes