Suppose one card is drawn from a randomly shuffled deck and then, without replacing that card in the deck, a second card is drawn. what is the chance that a king is drawn first and then an ace is drawn (not necessarily in that order)

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.