One online music site is advertising 15 song downloads for $6.75. Another site is advertising 12 song downloads for $5.76. Which is the better deal?

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Answer:   12 songs for 5.76   Step-by-step explanation:   Find the unit rate    6.75/15 = 1.35  It cost $1.35 per song.    5.76/12 = $0.48 per song.