1. which represents the type of sequence: -99, -96, -92, -87, -81, …?

a. both arithmetic and geometric

b. neither arithmetic nor geometric

c. geometric

d. arithmetic
2. a town has a population of 32,000 in the year 2002; 35,200 in the year 2003; 38,720 in the year 2004; and 42,592 in the year 2005. if this pattern continues, what will the population be in the year 2016?

a. 100,430

b. 110,473

c. 121,520

d. 133,672

So here are the answers for the given questions above:
1. Based on the given values above, the correct answer would be option B. NEITHER ARITHMETIC NOR GEOMETRIC. Why? When we say arithmetic sequence, the values should have a common difference which remains constant all throughout the sequence, and this sequence does not qualify. On the other hand, a geometric sequence should have a common ratio, and these numbers do not have one.
2. The correct answer for this problem would be option C. 121,520.
Based on the given values above, the values have a common ratio of 1.1. So what we are going to do is just to multiply 1.1 each time and by 2016, we will get 121,520.
Hope these answers help.