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Mathematics, 10.07.2019 20:30 lolo15xxx
Lillian built a staircase out of blocks. she used 2 blocks to make the first step, 4 blocks to make the second step and 6 blocks to make the third step. if she continues using the same pattern, how many total blocks will she have used after making the fourth step?
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Lillian built a staircase out of blocks. she used 2 blocks to make the first step, 4 blocks to make...
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