First of all you should estimate how long you think your reception will be. If it's only 3 hours and you're only paying $50, personally as a bartender myself, that's an insult. Second, if you're paying only for labor you should find out how much she makes during a normal shift at work. I live in a fairly small town but can easily make more than $40 an hour during each night.
1 being out of the ordinary the marine is being cited for extraordinary courage Synonyms aberrant, aberrated, abnormal, anomalous, atypical, especial, exceeding, extraordinaire, exceptional, freak, odd, peculiar, phenomenal, preternatural, rare, singular, uncommon, uncustomary, unique, unusual, unwontedRelated Words conspicuous, notable, noticeable ...
Synonyms: spend, disburse, expend. These verbs mean to pay or give out money or an equivalent: spent $30 on gas; disbursed funds from the account; expended all her energy teaching the class.