To find the price of a $320 tablet after a 45% markup, you can calculate the markup amount and then add it to the original price.
The markup is 45% of $320, which can be expressed in different ways:
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Calculating the final price directly:
- You can take the original price and multiply it by 1 plus the markup percentage. This gives you the entire price after the markup.
- This would be \( 320 \times 1.45 \).
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Calculating the markup and adding it to the original price:
- First calculate the markup: \( 320 \times 0.45 \) (which gives you the actual markup amount).
- Then add the markup to the original price: \( 320 + 320 \times 0.45 \).
The valid expressions that can be used are:
- \( 320 \times 1.45 \)
- \( 320 + 320(1.45) \)
Thus, from your options, the valid selections are:
- 320 . 1.45
- 320 + 320(1.45)
The other options do not correctly represent how to find the price after a 45% markup.