Me with this i got an answer but it wasn’t there and i need to turn this in!

First, find the population at the end of 1990
At the end of 1990, the increase would be 16 2/3 % of 30,000, or we could write it as
i = % × 30,000

We need to change percent into proper fraction
i = % × 30,000
i = % × 30,000
percent means per hundred
i = × 30,000
i = × 30,000
i = 5,000

At the end of 1990, the population would be
p = 30,000 + 5,000
p = 35,000

Second, find the population at the end of 1991
The increase of the population would be 10% of 35,000, or we could write it as
i = 10% × 35,000
i = 0.1 × 35,000
i = 3,500

The population at the end of 1991 would be
p = 35,000 + 3,500
p = 38,500
This is the final answer