Thirty thousand nine hundred and six.
Answer:

Step-by-step explanation:
we know that
<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
To calculate combinations, we will use the formula

where
n represents the total number of items
r represents the number of items being chosen at a time.
In this problem

substitute

simplify



Answer:
There is no graph .... Please next time add one :)
Step-by-step explanation:
There are 10 matches in the competition if you count every other player you'll end up with 10
9xy2-6x2y+5x3. Change every sign in the equation as if you were multiplying each part by -1.