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OpenStudy (anonymous):
A file of bricks has a 101 bricks in the bottom layer, 98 bricks in the 2nd layer, 95 bricks in the 3rd layer and so on.Until there are 20 bricks in the last layer. a) HOw many layers are there? b) How many bricks are in the 4th layer? c)How many bricks are there altogethere?
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OpenStudy (wasiqss):
28 layers are there
OpenStudy (wasiqss):
91 in 4th layer
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