Mathtaculator

Know how many valence electrons there are in both of them, then make a test to find how many valence electrons in both of them.

That is true but usually, the internet will explain it

Great. First, look through some literature and history BOOKS. Remember, these are the kind of books which will give the most information on what you want. I recommend doing some research, reading a few books, and reporting back to us.

Nice story...was there a problem?

we line up the numbers 4002 and 2153 and minus the numbers and carry over other numbers.

a square root of a number is the opposite of squaring the number. Take the number 4. the square would be (4)(4) = 16. The square root of 4 would be (2)(2) = 4 => 2

the ratio between girls to boys is 20:26 =>10:13, and the ratio from boys to girls is 13:10. the ratio between boys and total number of people is 26:46 => 13:23, and the ratio between girls to the total number of people is 20:46 => 10:23

why do you want to add more clubs is only a question to ask if they reply yes to the 1st question. I think it is pretty good topic. So, do you want us to think up some more questions?

make a tree chart. one scenario would be drawing a red ball, another a white ball, another...etc. Then, after you pick one case, make other choices... like after i picked a red ball...i picked either a red ball again or a white ball...