To determine how many packages of stickers you need, you first need to know the surface area of the wooden door stopper and then divide that by the coverage of one package of stickers.
Assuming you found that the surface area of the door stopper is approximately 414.14 cm² (as implied by your responses), you would perform the following calculation:
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Divide the surface area of the door stopper by the area covered by one package of stickers: \[ \text{Number of packages} = \frac{\text{Surface Area}}{\text{Area covered by one package}} = \frac{414.14 \text{ cm}^2}{75 \text{ cm}^2} \]
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Calculate the division: \[ \frac{414.14}{75} \approx 5.52 \]
Since you can only purchase whole packages, you would round up to the nearest whole number. Therefore, you would need 6 packages of stickers.
So, the correct answer is: You will need 6 packages of stickers.