A laptop is priced at $1,200. It is on sale with a 15% discount. After applying the discount, a sales tax of 7% is added.

What is the final price of the laptop?
A.$1,020.00
B.$1,734.00
C.$1,091.40
D.$1,085.50

To find the final price of the laptop, we'll follow these steps:

1. **Calculate the discount amount:**
   The discount is 15%, so:
   \[
   \text{Discount} = 0.15 \times 1200 = 180
   \]
   Subtracting this from the original price:
   \[
   \text{Price after discount} = 1200 - 180 = 1020
   \]

2. **Apply the sales tax:**
   The sales tax is 7%, so:
   \[
   \text{Sales tax} = 0.07 \times 1020 = 71.4
   \]
   Adding this to the price after discount:
   \[
   \text{Final price} = 1020 + 71.4 = 1091.4
   \]

So, the final price of the laptop is **$1,091.40**.

The correct answer is **C. $1,091.40**.

Would you like more details or have any questions?  
Here are five related questions:

1. How do you calculate percentage increases or decreases?
2. What is the effect of applying multiple discounts sequentially?
3. How do different sales tax rates affect the final price?
4. If the discount was 20% instead of 15%, what would the new final price be?
5. What if the tax was applied before the discount, how would it change the result?

**Tip:** Always apply discounts before adding sales tax for correct calculations!

A laptop is priced at $1,200. It is on sale with a 15% discount. After applying the discount, a sales tax of 7% is added. What is the final price of the laptop?
A. $1,020.00
B. $1,734.00
C. $1,091.40
D. $1,085.50

Learn how to calculate the final price of a laptop after applying a 15% discount and 7% sales tax. This detailed explanation uses percentage calculations for discounts and sales tax, suitable for students in Grades 6-8.

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