All of them except the 3rd one
3/10 divided by 4/5
You can solve this problem by changing the second fraction and multiplying. 3/10 times 5/4 is 15/40 = 3/8
The formula for calculating the mark up percentage is as follows:
sticker price - invoice price/invoice price • 100 = percent mark up
<h3>How to find the percentage mark up?</h3>
Percentage mark up can be described as follows:
percentage mark up = selling price per unit - cost price per unit / cost price per unit × 100
Therefore,
Mark up is the difference between a product's selling price and cost as a percentage of the cost.
Therefore, the formula for calculating the mark up percentage is as follows:
sticker price - invoice price/invoice price • 100 = percent mark up
learn more on percentage mark up here: brainly.com/question/16959984
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