Posted by **ELIJAH HAVA** on Sunday, April 28, 2013 at 2:36am.

find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6.

2.A display of cans on a grocery shelf consists of 20 cans on the botton, 18 cans inthe next row, and so on in an arithmic sequence, until the to[p row has four cans. how many cans , in total, are in the display?

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