Answer:
La maquinilla de afeitar
The razor
Explanation:
Sería la maquinilla de afeitar porque el cliente ya se había lavado el cabello con champú, usaba la secadora para secar el cabello y las tijeras para cortarlo.
It would be the razor because the client had already shampooed their hair, used the dryer to dry the hair and the scissors to cut it.
