Concept 3 is the Zero property and Concept 4 is the Quotient property.
Source: Created by Deena Lantz using sophia
Concept 4 - you try...
7.
8.
9.
10.
11.
12.
Concept 5 - you try...
7.
8.
9.
10.
11.
12.
Source: created by Deena Lantz using sophia