Which of the following are examples of geometric sequences? State the common ratio and write an explicit rule when applicable.
A: A bank account earns 1.25% interest annually.
B: A shirt is on sale for 15% off.
C: A swimmer reduces his 50-m backstroke by 2% each week of the summer.
D: A teacher hands out 2 pencils every day.

Which of these would have been most likely to have been a carpetbagger during the reconstruction era? a) a new york businessman who relocated to mississippi b) a former slave who was able to buy land in birmingham c) a carolina-born politician who supported the democratic d) a former confederate officer who owned a farm in memphis eliminate