### Home > CCA2 > Chapter 2 > Lesson 2.2.2 > Problem 2-120

2-120.

Is ? Justify your answer. Homework Help ✎

Substitute .

Isolate the variable to solve for . Is

*a positive integer?*

2-120.

Is ? Justify your answer. Homework Help ✎

Substitute .

Isolate the variable to solve for . Is