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To solve this problem, we need to find the price of each CD before tax. Let's go through the solution step-by-step.

### Step 1: Determine the Total Cost Before Tax
Amanda paid a total of $42.30, which includes a tax of $2.10. To find the amount she paid before tax, we can subtract the tax from the total.

\[
42.30 - 2.10 = 40.20
\]

So, the total cost before tax was $40.20.

### Step 2: Find the Price of Each CD
Amanda bought 3 CDs at the same price, and the total cost before tax was $40.20. To find the price of each CD, we divide the total cost by the number of CDs.

\[
\frac{40.20}{3} = 13.40
\]

### Answer
The price of each CD before tax is **$13.40**.

Would you like further details on this solution, or do you have any questions?

### Related Questions
1. If Amanda bought 5 CDs instead of 3 with the same total cost, what would the price per CD before tax be?
2. What would the total price be if the tax increased to $3.00?
3. If each CD was discounted by $1 before tax, what would be the new total cost?
4. How much would Amanda pay if she bought 4 CDs at the same price, including a tax of $2.80?
5. What would the price per CD be if she paid $45.00 in total and the tax was $2.50?

### Tip
When dealing with "before tax" or "after tax" problems, remember to isolate the tax component first by subtracting it from the total cost. Then divide by the number of items to find the unit price.

Amanda bought 3 CDs that were each the same price. Including sales tax, she paid a total of $42.30. Of that total, $2.10 was tax. What was the price of each CD before tax?

Solve a problem involving calculating the price per CD before tax. Amanda bought 3 CDs for a total of $42.30, including $2.10 tax. Find the price of each CD before tax in this step-by-step solution suitable for students in Grades 5-7.

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