Which pair of expressions below contains like terms? (1 point) Responses 7x and 8xy 7 x and 8 xy 12x and 12y 12 x and 12 y 5xy and 7xyz 5 xy and 7 xyz 3yz and 9yz

The pair "12x and 12y" contains like terms since they both have the same variable, which is "x" and "y".