Mathematics, 12.12.2020 16:40, richardharding

An online media service offers video and music downloads. Each download of a song costs $1.25. Each download of a video costs 4 times as much as the song download. You have a credit of $80. How many songs can you purchase after buying 10 videos?

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An online media service offers video and music downloads. Each download of a song costs $1.25. Each...