Six children need to have their flu shots. In how many orders could they be given?

a)120

b)30

c)720

d)360

10 runners take part in a race. In how many different ways could the top 3 be arranged?

a)720

b)120

c)1000

d)990

Two adults and three children sit on a bench. If the children sit together, in how many orders can they all sit?

a)40

b)60

c)24

d)36

I can walk three blocks East and five blocks North in any order to get home. In how many different ways could I walk home?

a)126

b)720

c)2688

d)56