On Tuesday, Oct. 8, the U.S. Supreme Court will hear arguments in three cases that will determine whether Title VII of the Civil Rights Act of 1964 protects LGBT workers.

Two of these cases center on discrimination against employees based on their sexual orientation. More simply put, the court will be looking to answer the question of whether it is sex discrimination if an employer fires Don, but not Donna, for dating men. The third case, concerning the firing of transgender funeral director Aimee Stephens, asks whether the firing of Stephens when she told the boss that she is transgender and will be coming to work as her true self was because of sex, given that the boss had been satisfied for years when she came to work as Andrew.