Which set of ordered pairs does NOT represent y as a function of x?

Question 5 options:

{(1, 1), (2, 2), (2, 3)}

{(1, 2), (2, 3), (3, 3)}

{(1, 1), (2, 1), (3, 1)}

{(1, 2), (1, 3), (1, 1)}

Which set of ordered pairs does NOT represent y as a function of x?

Question 5 options:

{(1, 1), (2, 2), (2, 3)}

{(1, 2), (2, 3), (3, 3)}

{(1, 1), (2, 1), (3, 1)}

{(1, 2), (1, 3), (1, 1)}

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Can someone pls ! pls answer all. no explanation needed..

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244