Final answer:
To find the percent decrease, calculate the difference between the original price and the sale price, and then divide that difference by the original price.
Step-by-step explanation:
To find the percent decrease of the price of the doll, we need to calculate the difference between the original price and the sale price, and then divide that difference by the original price.
- Original price: $40
- Sale price: $18
- Difference: $40 - $18 = $22
- Percent decrease: ($22/$40) * 100% = 55%
The percent decrease of the price of the doll is 55%, which is not one of the given options. Therefore, none of the provided options are correct.
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