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Picture below need help a lot of points

Picture below need help a lot of points-example-1
User Bltxd
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1 Answer

12 votes
12 votes

Answer:

rp=20 :: pp=90

Explanation:

Well, if it's 10% off then we know that the percent paid is 90%

Now, 18 is 90% of 20, so the regular price is $20

User Jadhachem
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