Answer:
19
Step-by-step explanation:
In 5 years, the population will be multiplied by 1.1^5 ≈ 1.61. It will be about ...
12 × 1.61 ≈ 19 . . . people
_____
The population is multiplied by a factor of 1.1 each year. The number of times that factor is used as a multiplier (its exponent) is the number of years between 2013 and 2018, which is 5.
