Answer:
4
Step-by-step explanation:
You can count with your fingers, 2 fingers+2 fingers are 4 fingers
If a number can only be divided by 1 and itself it is prime, but if it is composite, it can be divided evenly by numbers other than 1 and itself.
63 can be divided by 3 and 21, so it is a composite number.
Answer:
There no solution, because there have no k in this equation.
Answer:
They help to visualize the problem
Step-by-step explanation: