What is the sum of a 7-term geometric series if the first term is 6, the last term is 24,576, and the common ratio is 4? −32,766

−19,662

19,662

32,766

Correct 32,766

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?