Okay, here we have this:
Considering the provided information, we are going to calculate how much will her 1,900 be worth in 3 years using the compound interest formula, so we obtain the following:
[tex]\begin{gathered} A=P\mleft(1+\frac{r}{n}\mright)^{nt} \\ A=1900(1+0.04)^{1\cdot3} \\ A=1900(1.04)^3 \\ A=1900\cdot\: 1.124864 \\ A=2137.2416 \end{gathered}[/tex]Finally we obtain that in 3 years she will have $2137.2416.
