A customer earned $3,262.50 interest on a 9-month CD. How much was the opening deposit?

the rate is 2.9%

idk i need help

To find the opening deposit, we need to first calculate the interest rate per month.

Step 1: Divide the interest earned by the number of months:
Interest Rate per Month = Interest Earned / Number of Months
Interest Rate per Month = $3,262.50 / 9

Step 2: Calculate the opening deposit by dividing the interest earned per month by the interest rate per month:
Opening Deposit = Interest Earned / Interest Rate per Month

Let's calculate it step by step:

Step 1: Calculate the interest rate per month:
Interest Rate per Month = $3,262.50 / 9
Interest Rate per Month ≈ $362.50

Step 2: Calculate the opening deposit:
Opening Deposit = $3,262.50 / $362.50
Opening Deposit ≈ $9,000

Therefore, the opening deposit for the CD was approximately $9,000.

Nobody knows because the interest rate isn't stated.