Respuesta :
38.00 divided by 100 then multiply the answer by 20 and u get the tip amount
The expression Joelle needs to use to tip her hairdresser is
[$[tex](38)(20)[/tex] ÷ 100], as per linear equation.
What is a linear equation?
A linear equation is an equation that contains one or more than one variable. In linear equation, the highest power of the variable is 1.
The amount for haircut is $38.
Joelle wants to tip 20% of her bill.
Therefore, the tip is
= $[tex](38)(20)[/tex] ÷ 100
= $7.6
Learn more about linear equation here: https://brainly.com/question/10675993
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