Find the amount or rate of discount and the sale price. Round money amounts to the nearest cent.Original price: $100  Rate of discount: 20%

A. $21.00, $79.00 
B. $10.00, $90.00 
C. $20.00, $80.00 
D. $19.00, $81.00


Answer: C

Mathematics

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A. a. center = ; radius = 
b. 
B. a. center = ; radius = 
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C. a. center = ; radius = 
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A.
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C.
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Factor, if possible.-72 + 17x - x2

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