In 1992, only 275 people owned cellphones in Metropolis. Each year, cell phone use has continuously grown by 82%. How many cellphone users were there in 2000?

For this case we have the following equation of the potential type:

y = A (b) ^ t

Where,

y: number of people with cell phones

A: initial number of people with cell phones

b: growth rate

t: time

Substituting values:

y = 275 * (1.82) ^ t

For the year 2000 we have t = 8.

Substituting:

y = 275 * (1.82) ^ 8

y = 33105.77794

nearest whole integer:

y = 33105

Answer:

there were 33105 cellphone users in 2000