Question

In the summer of 2008 the population of cuckoos in an area was estimated as 560 pairs. If the numbers returning are declining at 4% each year, calculate
(a) the number of pairs of cuckoos in the area in the summer of 2009;
(b) the number of pairs of cuckoos in the area in the summer of 2020.

Answer 1

pairs = 560* .96^(year-2008)

Answer 2

2(x-3)< 4x+10