Kansas enacts a law that allows the state to supplement the salary of teachers in parochial schools who teach "non-religious" subjects by $1,200 a month. several groups sue the state and the case goes to the u. s. supreme court. the court would most likely rule that the kansas law violates the

The correct answer here would be the establishment clause of the first amendment.

The Establishment Clause of the First Amendment is a very important part of the said document as it prohibits the government from doing several things which include establishing a national religion as well as unduly favoring one religion over the other. It also prohibits, which is important for this case, favoring, unduly, non-religion over religion and vice versa.