Question

A.
361

B.
501

C.
6480

D.
12,500

Answer 1

We need to multiply to get the population of North Folk.


`(18)/(25) * 9000 = (18* 4)/(25* 100) * 9000 = (72)/(100) * 9000\\\\(72)/(100) * 9000 = 72 * (9000)/(100) = 72* 90 = \boxed{\boxed{6480}}`

6480 is your answer.