An item costs $ 360 before tax, and the sales tax is $ 28.80 . Find the sales tax rate. Write your answer as a percentage.
1 answer:
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Answer:
radius = 6
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ←r is the radius
x² + y² = 36 ← is in this form
with r² = 36 ⇒ r = = 6