Answer:
To calculate the simple interest, you can use the formula I = P * r * t, where I is the interest, P is the principal amount, r is the interest rate, and t is the time period.
In this case, Oliver Brown has $2,000 as the principal amount, an interest rate of 13% (which is written as 0.13 in decimal form), and a time period of 9 months (which is written as 0.75 in decimal form).
Plugging these values into the formula, we get:
I = $2,000 * 0.13 * 0.75
I = $2,000 * 0.0975
I = $195
Therefore, the simple interest for Oliver Brown's loan is $195.
Alli <3