Answer:
total 20 squares in matrix of size 4×3
Step-by-step explanation:
in square of size 1×1
six squares of size 2×2
2 squares of size 3×3
A real number that cannot be expressed as a ratio of integers.
Answer:
Following are the responses to the given question:
Step-by-step explanation:

(7x-3y)^2 hope this helps
PEMDAS!
Parenthesis
Exponents
Multiplication
Division
Adding
Subtracting