You bought a soda for $0.50, then sold it for $1.00. What was the percent change?
2 answers:
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In this question, you have to isolate <em>x</em>.
First, use the distributive property.
Now that you have distributed, subtract the constants.
First, use the distributive property.
Now that you have distributed, subtract the constants.
Geometric mean of a and b is: 
= 40
Answer: B ) 40
Answer: B ) 40