Answer: The correct answer is 20,236 people
Step-by-step explanation: If the population is 5746 people today and every year the population increases by 12%, this means that 690 more people come to Irun. (5746 x 0.12= 689.52 rounded to 690) Thus if you multiply 690 x 21 (years)= 14,490 people. 14,490 + 5746= 20,236 people in 21 years