Which one? (Warm up) whoever answers correctly gets brainlest!!

Evaluate the dot product of (3,-1) and (1,5)

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades 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.

3x = 729 solve for x plz . it's urgent. will mark