In 1996, only 193 people owned cellphones in metropolis. each year, cell phone use has continuously grown by 58%. how many cellphone users were there in 2008? (show your work)

For this case we have an equation of the form:
 
 Where,
 A: initial amount
 b: growth rate
 x: time in years
 Substituting values we have:
 
 For the year 2008 we have:
 
 Round to the whole whole integer:
 
 
 there were 46714 cellphone users in 2008