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27-01-2021
Mathematics

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15 POINTS pre algebra I think

15 POINTS pre algebra I think class=

Respuesta :

27-01-2021

Answer:

28.6 (90% sure)

Step-by-step explanation:

To solve this work backwards

[tex]D_{3}[/tex]=42

[tex]D_{2}[/tex]=42*.80 = 33.6

[tex]D_{1}[/tex]=33.6-5 = 28.6

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