From a group of 12 people, how many groups of 5 people can be chosen

In order to do that you need to do multiplication so for the first person to be chosen there are a total of 12 people so you start with 12 in your equation

then you have 11 people left for the second person so your equation becomes 12x11

there are 10 people for the third: 12x11x10

9 for the fourth

and 8 for the fifth

so your equation becomes: 12x11x10x9x8 = 95,040 different groups of 5

It is the product of the number of choices for each selection ...

12*11*10*9*8=95040