Someone help me please

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?