You can make the following assumptions:

$1.$ Each store has one manager

$2.$ Each employee has one supervisor

$3.$ Many employees are assigned to each store. The attribute Hours tells the number of hours each employee has worked on the corresponding store per week and the attribute rating is the rating that this employee received for his work on this store.

$4.$ Revenue and opening date refer to the store

Based on this information:

$1.$ Is this relation in $1$NF$?$ If not create the $1$NF$.$ If yes explain why.