The thirteen term of an arithmetic progression is 27. Given that the seventh term equals to three times the second term, find

The thirteen term of an arithmetic progression is 27. Given that the seventh term equals to three times the second
term, find
(a) The first term and the common difference of the progression.
(b) The sum of the first three even numbered terms of the progression.
(c) It’s given that (b-9/4), b and (b + 3.375) are the 2^nd,3^rd, and 4^th terms of a geometric progression. Determine the value of b.

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sharon kalunda answered the question on April 26, 2019 at 13:53

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