# Write an exponential function to model each situation. Find each amount after the specified time. A population of 120,000 grows 1.2% per year for 15 years.

Write an exponential function to model each situation. Find each amount after the specified time. A population of 120,000 grows $1.2\mathrm{%}$ per year for 15 years.
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yagombyeR
$A\left(t\right)=a\left(1+r{\right)}^{t}$
Substitude a with \$120,000, r with $1,2\mathrm{%}=0.012$ and t with 15:
$A\left(15\right)=120,000\left(1+0.012{\right)}^{15}$
$=120,000\left(1.012{\right)}^{15}\approx 143,512$