In the question , it is given that , a college student borrows $1,000 for 9 months to pay for a semester of school.
And the interest is $61.88 .
Let the monthly payment be $x . So in 9 months, the student paid $9x .
And interest is the difference of 9x and the money borrowed, that is
![9x - 1000 = 61.88](https://img.qammunity.org/2019/formulas/mathematics/high-school/vqkypbvhd556896z3kuk386j7bhp6uvhng.png)
Adding 1000 to both sides
![9x = 1061.88](https://img.qammunity.org/2019/formulas/mathematics/high-school/2htwxyyoonbames4qyx5rn00hi42gl9xu9.png)
![x = (1061.88)/(9) =$117.99](https://img.qammunity.org/2019/formulas/mathematics/high-school/8cda0amefcdvfzu2ttaqz8jo194hryzv2i.png)