To calculate the simple interest rate on Jamerra's car loan, we can use the formula:
Interest = Principal * Rate * Time
In this case, the principal (P) is $3,000, the interest (I) is $450, and the time (T) is 2 years. We need to determine the rate (R).
Plugging the given values into the formula:
$450 = $3,000 * R * 2
Dividing both sides of the equation by $6,000:
$450 / $6,000 = R * 2
0.075 = R * 2
Dividing both sides of the equation by 2:
0.075 / 2 = R
R = 0.0375
So, the simple interest rate on Jamerra's car loan is 0.0375, which is equivalent to 3.75%.