Question 461994
We would be happy to solve the problem for you, but it doesn't seem to make sense right now. Please reread what you typed very carefully, particularly the word "purchase." What does that mean in the context of this problem?
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Also, you've given us the dimensions of the picture frame: (12 cm and 20 cm), but the problem is asking for what has already been given.
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Good luck,
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Ms.Figgy
Math.in.the.vortex