In how many ways can a member of a hiring committee select 3 of 12 job alllicants for further consideration?

Akitchen floor is made up of tiles that are in the shape of the triangle shown there are 40 tiles on the kitchen floor what is the total area of the floor

How many lines can be drawn through points j and k? 0 1 2 3

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?