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mixer [17]
4 years ago
14

10) → Michael paid $8.40 for a DVD after having been given a 30% discount.

Mathematics
1 answer:
tatyana61 [14]4 years ago
5 0

Answer:

Step-by-step explanation:

If the presale price is x,

then x*(1-0.30)=8.40\\0.70x=8.40\\x=8.40/0.70=12.0\\

Thus the presale price is $12.0

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