The answer is 20, since it’s heads and tails you have a half and half chance, therefore you divide 40 in half and get 20
Answer:
For any method or algorithm, there will always be changes, as there are many ways to create on request, and one method might be better than the other.
I discovered that direct instruction is important by designing my own algorithm.
It is the use of simple, direct teaching methods, usually in order to teach a particular skill.

Answer:
1.01 × 10⁴ - scientific notation
10,100 - decimal notation
-30 is the answer to your problem.