Question

The population of a certain city increased by 18,000 people.

Answer 1

Answer:

$+18000$

Step-by-step explanation:

Given

Increment = 18000

Required

Represent as a signed number

If the initial population is x.

The new population (y) will be:

$y = x + 18000$

It is "+" because the population of the city increases.

Hence, the signed number is  $+18000$