Question

The coach of a junior league baseball team must choose 3 players to play as fielders from 9 young people who have tried out. In how many ways can these three players be chosen?

Answer 1

combinations of 9 taken 3 at a time
= 9!/[ (9-3)!(3!)]
= 9*8*7/(3*2)
= 3*4*7 = 12*7 = 84

Answer 2

A baseball team has 1,400 to buy baseball uniforms. Each uniform costs $124. Does the team have enough money to buy 11 baseball uniform.

Answer 3

1400/121 = ~11.5702...
Which is over 11. So yes, you have enough.