This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
I think there will be 36 handshakes.

so the solution be like: (SORRY FOR MY SOLUTION)

the circles represent the handshakes of each person
so for person 1, the red circles represent the number of the handshakes he made.
and its also like in person 2, the orange circles represent the number of handshakes he made.
and so on..

so in total, there will be 36 handshakes.

ps i think we had this question when i was in grade 7, i just dont remember the answer.

Can you show me the solution
i dont know if each person will shake others at once
so in mathematical equation, the solution will be like:

9 times 8
9 times 8 divided by 2 = 36 handshakes
formula = N*(N-1)/2