Algebra 2 Exponents Word Problem

If the number of electronic devices increase in a particular region by the formula E(x)=3.25(1.08)^x, where x is the number of new residents in the region, how many electronic devices are expected when 24 new residents arrive?

E(x) = 3.25(1.08)^x

x is the number of new residents

"how many electronic devices are expected when 24 new residents arrive?"

In other words, what is E(x) when x = 24? Just plug it right into the equation and use a calculator:

E(24) = 3.25(1.08)^24
E(24) =~ 20.6088

So about 21.

Hope that helps.

E(24)=3.25(1.08)^24

=3.25(6.34)

= approx. 20.61

1.22 x 10^13