The interest generated from a simple interest account is given by the following expression:
[tex]I\text{ = M}\cdot r\cdot t[/tex]Where I is the value of the interested after "t" years, M is the value applied to the account, r is the interest rate divided by 100 and t is the elapsed time in years.
With this in mind let's apply the data from the problem into the expression.
[tex]\begin{gathered} I\text{ = 10000}\cdot\frac{8.75}{100}\cdot1 \\ I\text{ = 10000}\cdot0.0875\text{ = }875 \end{gathered}[/tex]After a year Ginny will earn $ 875 in interest from that account.