I have a quick question.

I keep getting confused in this topic.

Purchase down payment= $3000
add on number of payments = 18
price= $500
interest rate : 7%
FIND THE APR TO THE NEAREST HALF.

In my solution I am first calculating the total payment and then I get a 9000, once I am done with this, I calculate interest and then apply for the Finance charge formula.

However I am not getting anything close to the multiple choice given..

Could any one please help me solve this and show me?

To find the APR (Annual Percentage Rate) to the nearest half, you need to follow the correct steps. Let's break it down:

1. Calculate the total payment:
Since each payment is $500, and there are 18 payments, the total payment would be 18 x $500 = $9,000.

2. Calculate the finance charge (interest):
To calculate the finance charge, you need to find the difference between the total payment ($9,000) and the principal amount (the purchase down payment), which is $3,000 in this case. Therefore, the finance charge is $9,000 - $3,000 = $6,000.

3. Calculate the APR:
To find the APR, you need to determine the interest rate per payment period. Since there are 18 payments spread over a year, the payment period is 1 year / 18 = 1/18 of a year.

Now, to calculate the interest rate per payment period, divide the finance charge ($6,000) by the principal amount ($3,000) and multiply by 100 to convert it to a percentage:

Interest rate per payment period = ($6,000 / $3,000) x 100 = 200%

4. Round to the nearest half:
The interest rate per payment period is 200%. To find the APR to the nearest half, divide the interest rate by the number of payment periods in a year:

APR = (Interest rate per payment period) x (number of payment periods in a year) = 200% x 18 = 3600%

To round it to the nearest half, divide the APR by 2:

APR to the nearest half = 3600% / 2 = 1800%

So, the APR to the nearest half for this purchase is 1800%.

If your solution isn't matching the multiple-choice options given, please double-check your calculations and verify that you followed the correct steps outlined above.