Answer:
153 ways.
Step-by-step explanation:
The answer is the number of combinations of 2 from 18
= 18! / 2! (18-2)!
= 18! / 2! 16!
= 18*17*16! / 2! 16!
= 18 * 17 / 2*1
= 9 * 17
= 153 ways.
Answer:
328
Step-by-step explanation:
Answer:
182.7
Step-by-step explanation:
Answer:
x=39
Step-by-step explanation:
I can explain later but I know you have a time limit right now.