Hex on a target and then cast Magic Missiles at the same target, what would the damage be like?

@JeremyECrawford Question, If a Sorcerer/Warlock was to have Hex on a target and then cast Magic Missiles at the same target, what would the damage be like?

— Stephen Saunders (@Thordin2017) November 29, 2017

The hex spell benefits attacks, which means something that is called an attack or that includes an attack roll. Spells like magic missile and fireball involve no attacks. #DnD https://t.co/3GBi7RMgnb

— Jeremy Crawford (@JeremyECrawford) November 29, 2017