Answer:
The employer is the local convenience store, Mac.
Gerald is Xavier and Fatima´s supervisor at the local convenience store, Mac.
The safety issue in this situation is the safety of the employees regarding the possibility of robbery in the workplace.
Explanation:
Considering that employers have the responsibility to ensure safety in the workplace, Xavier and Fatima should talk with their employer about their concerns and file a complaint with the Occupational Safety and Health Administration (OSHA) if necessary.
Some actions that could be taken to ensure a safer situation would be making sure they have access to a telephone with an outside line, having emergency phone numbers close to the phone, making sure the lighting is sufficient, having working security cameras and mirrors, a panic button and an alarm system.