The correct formula for this is as follows:
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
where n is the number of compounding periods per year, and r is the annual interest rate as a decimal,
Plugging the given values into the formula, we get:
[tex]4550=2700(1+\frac{0.09}{4})^{4t}[/tex]
This equation can be simplified to:
[tex]1.6852=(1.0225)^{4t}[/tex]
Taking logs of both sides gives:
[tex]log 1.6852=4t\times log 1.0225[/tex]
which can be rearranged to get:
[tex]t=\frac{log 1.6852}{4\times log 1.0225}=5.864[/tex]
So it will take about 5.864 years for the amount to reach $4550.
