1. Indicate whether each given expression is one or more of the following: rational, irrational, integer, natural, or undefined. (a) (b) 0/6 (c) 6/0

1. Indicate whether each given expression is one or more of the following: rational, irrational, integer, natural, or undefined.

(a) π

(b) 0/6

(c) 6/0

2. Insert the proper sign (<, =, or >) to replace each 

(a) π 3.14

(b) -100 0.1

(c) - 3 -12