5. a) A wire has a total length of 8184cm. It was cut into various pieces to form a series of 10 squares. The а length of each s
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He should receive $1.70 in change.
Let 
be the common difference between terms in the sequence 
. Then
The first term in the sequence,
, satisfies
...
So the explicit formula for the
-th term in the sequence is
The first term in the sequence,
...
So the explicit formula for the