Consider the sequence 1, 7, 13, 19, . . . , 6n + 7. (a) How many terms are there in the sequence? Your answer will be in terms of n. (b) What is the second-to-last term? (c) Find the sum of all the terms in the sequence, in terms of n.

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A: Solution of given question is written in below steps.

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A: Steps and explanations are as follows:In case of any doubt, please let me know. Thank you.

Q: Consider the sequence 1, 7, 13, 19, . . . , 6n + 7. (a) How many terms are there in the sequence?…

A: Sequence, 1, 7, 13......upto (6n+7).

Q: Consider the arithmetic sequence -7,-4,-1,..., 290. (a) Find the number of terms in the given…

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