Answer:
20 * .4 = 8 dollars off
20 - 8 = 12
original price = 20
The answer is C!
Step-by-step explanation:
All three are similar!
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4.4471336 * 10^2.
(6.253•10^-2)(7.112x10^3)
= 6.253*7.112 * 10^-2*10^3
= 44.471336 * 10^1
= 4.4471336 * 10^2.