Answer:
2/12
Step-by-step explanation:
7/12 -5/12 = 2/12
the number 2 can go into 2 once and 12 six times so you should get 1/6 as your answer
Your answer to this problem is 180 girls in green valley elementary school.
If we do not care about order, then a combination is an arrangement of r objects chosen from n distinct objects. It can often be seen written as:

or

Its factorial form is:
Use you graphing calculator in the y equals button