Respuesta :

Reneeloc2017
39-27=12 amount of discount.
12/39=0.31
So your answer is going to be A
gmany
[tex]R=1-\dfrac{P-D}{P}\\\\\text{We have:}\\\\P=\$39\\\\D=\$39-\$27=\$12\\\\\text{substitute}\\\\R=1-\dfrac{39-12}{39}=1-\dfrac{27}{39}=\dfrac{39}{39}-\dfrac{27}{39}=\dfrac{12}{39}\approx0.31[/tex]
[tex]\boxed{Answer:\ A.\ 0.31}[/tex]

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