Answer:
it mean that they real self is secret or they keeping it private
Step-by-step explanation:
Hey there!
If a cost of a gallon recently doubled, then it increased by 50%. This is because half of 100% is 50% and it takes one more 50% to double.
Hope this helps you.
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To solve this problem you must apply the proccedure shown below:
1. You have the following functions given in the problem above:

and

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2. You have that g(x) times f(x) can be written as g(x)*f(x). Therefore, you must multiply f(x) * g(x), as following:
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3. Applying the distributive property, you have:
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The answer is:
The answer is A. 21.6 just add, 9.2+0.5+6+5.9=21.6
I hope this helps!