Question

MEDAL PLEASE HELP
There are 10 students participating in a spelling bee. In how many ways cant he students who go first and second in the bee be chosen?
A) 45 ways
B) 3,628,800 ways
C) 1 way
D) 90 ways

Answer 1

the last one o go first, there are 10 ways because each of the 10 participants can be chosen.
To go second, there are only 9 ways, because there are only 9 participants left because 1 is already chosen to go first.

Number of ways = First x Second = 10 x 9 = 90 ways

Answer 2

does that help