Mathematics, 25.03.2020 17:00 terabear2033
Of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do both. if 300 people polled purchase blu-ray discs and 280 purchase dvds and blu-ray discs, how many people only buy dvds? please help a. 300 b. 20 c. 280 d. 40
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Of 320 consumers polled, some purchase blu-ray movies, some only purchase movies on dvd, and some do...
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