Answer: If the bill was $150 then she should tip her stylist $30.
Step-by-step explanation:
Given: The bill amount for the coloring = $150
The percent of tip =20%
The amount of tip = 20% of the bill amount
Therefore, the tip amount is given by :-
Hence, the amount of tip = $30
Therefore, If the bill was $150 then she should tip her stylist $30.