Answer:
x=15
Step-by-step explanation:
3x=45
We want to get x by itself, so we divide each side by 3
3x/3 = 45/3
x =15
Answer:
huh?
Step-by-step explanation:
Use a calculator or do it on paper
Answer:
Possible committee structures = 293930
Step-by-step explanation:
The combination expression is used here
²¹C₉ = 21!/(9!(21−9)!) = 293930
