In how many ways can 9 horses place 1st, 2nd, or 3rd in a race?

504

Step-by-step explanation:

First of all, there are 3 places.

_ _ _

In the first place, any of the 9 horses can be first.

9 _ _

Now, 8 horses are remaining. You can put any of those 8 horses in second place.

9 8 _

Finally, 7 horses are remaining. You can put any of those 7 horses in third place.

9 8 7

We multiply these numbers to find ways horses can be 1st, 2nd or 3rd in race.

= 9 × 8 × 7

= 504

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12