Question
1 bead, 1 marble and 1 sticker cost $20.
1 bead and 1 marble cost $10.
1 bead and 1 sticker cost $19.
How much are 1 marble and 1 sticker?
4 m

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1 bead, 1 marble and 1 sticker cost $20.
1 bead and 1 marble cost $10.
1 bead and 1 sticker cost $19.
How much are 1 marble and 1 sticker?