Answer:
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Step-by-step explanation:
Given
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Required
Solve

Split:
and
Collect Like Terms
and 
and 
Combine
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The fraction you are looking for is expenses/earnings
So (2500+650+434)/3600
=224/225
If you want to turn this into a percentage just multiply by 100, to give you 99.56%.
6.75%
1 penny = 50% chance of tail
50% x 50% x 50% x 50%= 6.75%
Step-by-step explanation:
So first we will multiply
(2xy)(3y)
=

20 * .10 = 2 <em>(2 = 10% of 20)</em>
20 + 2 = 22
20 x .07 = 1.4 <em>(1.4 = 7% of 20)</em>
20 + 1.4 = 21.4
The price of a 20$ haircut with a 10% tax would be $22.
The price of a 20$ haircut with a 7% tax would be $21.40.