Mathematics, 25.06.2019 07:00, hermine40

Karen buys a picture frame on sale for $9. a week later she buys the same frame for the regular price. the total price for the frames is $21. which equation could be used to find the cost (x) of the second frame? a) $21x = 9 b) $9x = $21 c) x + $9 = $21 d) x − $9 = $21 e) none of the above what is the regular price of the frame? a) $10 b) $12 c) $14 d) $16 e) none of the above

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Karen buys a picture frame on sale for $9. a week later she buys the same frame for the regular pric...