the amount of sales tax on a clothing purchase is directly proportional to the purchase price of the clothing. the sale tax on a
$60 sweater is $4.20. determine the constant variation (sales tax percentage).
1 answer:
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Answer:
7%
Step-by-step explanation:
The tax rate is the ratio of tax to pre-tax cost:
$4.20/$60.00 = 0.07 = 7%
The constant of variation (tax rate) is 7%.
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