On Tuesday, a store sold 12 compact discs, 5 casssettes and 9 videos. One wednesday, the store sold 19 compact discs, 3 cassettes, 9 videos and 35 concert tickets.  Construct a matrix that shows...

On Tuesday, a store sold 12 compact discs, 5 casssettes and 9 videos. One wednesday, the store sold 19 compact discs, 3 cassettes, 9 videos and 35 concert tickets.  Construct a matrix that shows the number of items sold, organized by day and product.

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On Tuesday, a store sold 12 compact discs, 5 cassettes and 9 videos. One Wednesday, the store sold 19 compact discs, 3 cassettes, 9 videos and 35 concert tickets.

The following matrix shows the number of items sold, organized by day and product.

`[[,Tuesday, Wednesday],[Compact Discs, 12, 19],[Cassettes, 5, 3],[Videos, 9, 9], [Concert tickets, 0, 35]]`

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