Ummm i think it is "if" because the "if" is the hypothesis and the then is the conclusion
12 oz
jnnnnhh
yes bevayde it should be
The answer is B. The problem involves partial sums, thus the presence of sigma for easier coverage. The number above the sigma is the number where the process stops, while the number below is the starting value of the unknown value in the equation.
You would do 9*8*7 because any 9 could take up one then 8 people are left for the other and 7 for the final one so 504 ways