Answer:
c)124
Step-by-step explanation:
3*2+7*8+12*4=124
You calculate the number of ways that 2 people can be chosen from 10.
The formula:
n! / r! * (n-r)! =
10! / 2! * 8! =
10 * 9 * 8! / 2 * 8! =
10 * 9 / 2 =
45 handshakes
Source:
http://www.1728.org/combinat.htm
302,019,834 is the answer to your question
1,000,000 x (15/100)
1,000,000 x (0.15)
150, 000
