### Home > CCA2 > Chapter 2 > Lesson 2.2.1 > Problem 2-100

2-100.

Write an equation for each of the following sequences. Homework Help ✎

Going from left to right, how much do the terms decrease?

Each term is

less than the preceding one. This sequence is arithmetic.

Is this geometric or arithmetic?

This is geometric because there is a common ratio (multiplier) between the increasing terms.