Which properties were used to simplify the following expression? Select all that apply.
2 answers:
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For the expression 
, the coefficient of the x² term is 1.
Answer:
$9.00
Step-by-step explanation:
If the price is at 30% discount, this means it is 100-30 = 70% of the original price.
Hence, original price is $9.00.
Not sure if this is the right answer but try math-way it helps me a lot.
