Answer:
The amount of interest that would be earned in four years is;
[tex]\text{ \$315}[/tex]Explanation:
Given that $875 is put in the bank and each year the account earns 9% simple interest;
[tex]\begin{gathered} \text{ Principal P = \$875} \\ \text{rate r = 9\% = 0.09} \end{gathered}[/tex]To calculate the interest in four years;
[tex]t=4\text{ years}[/tex]Applying the simple interest formula;
[tex]i=P\times r\times t[/tex]substituting the given values;
[tex]\begin{gathered} i=\text{ \$875}\times0.09\times4 \\ i=\text{ \$315} \end{gathered}[/tex]Therefore, the amount of interest that would be earned in four years is;
[tex]\text{ \$315}[/tex]