A. Provide the first five terms of an arithmetic or geometric sequence that has a first term higher than 10 and a common difference or ratio that is positive but not 1. 1. Using the general formula for either the arithmetic or geometric sequence, derive the specific nth term formula for the sequence from part A, showing all steps.

2. Find the 30th term of the sequence from part A, using the nth term formula from part A1 and showing all work.

B. Explain how to use patterns or sequences to determine the last digit of the number 7N, where N is 2001.