The 5th term of a geometric sequence is 45 and the 8th term is 360. Determine the 20th term.

Q: What would be the easy way to figure out the 100th and nth of the sequence:  1, 4, 9, 16, 25, 36,.

A:

Q: The second and fifth terms in an arithmetic sequence are 12 and 18 respectively. What is the 100th…

A: Use  an=a1+n-1d  to solve the problem.

Q: Calculate the next term in the arithmetic sequence that increases by 65, if the current term is 41.

A: Given, the arithmetic sequence that increases by  65, if the current term is 41.

Q: Find the sum of the geometric sequence -3, 15, -75, 375, .. when there are 9 terms and select the…

A: