the grid graph Gm,n refers to the graph obtained by taking an m × n rectangular grid of streets (m ≤ n) with m north/south blocks and n east/west blocks. For example: 
-Find the region-chromatic number for Gm,n (including the infinite face).
Definitions:
Cerebellum
A part of the brain located at the back of the skull that is responsible for coordinating and regulating voluntary movements.
Brain Regions
Specific areas within the brain that have distinct functions, such as the prefrontal cortex which is involved in decision making and personality development.
Limbic System
A complex system of nerves and networks in the brain, involved in emotions such as fear and pleasure, as well as instincts and mood.
Brainstem
The part of the brain connected to the spinal cord that controls vital functions such as breathing, heart rate, and blood pressure.
Q3: The circuit diagrams for <span
Q11: There is a tree with degrees 3,
Q20: Prove that F=G , where
Q24: Refer to the situation described above; what
Q29: <span class="ql-formula" data-value="\text { Find } p
Q30: Find a formula for the number
Q61: You have ten cards, numbered 1 through
Q86: If T is a tree, then its
Q121: You have 20 cards and 12 envelopes
Q127: In a technician's box there are 400