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5% of 175 = 17.5/2 = 8.75.

175+(8.75*12) = 175+105 = $280

She will have $280 in the account after 12 years.

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1. 2n

2. xy or yx

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Because the fractions have the same denominators, cancel out the denominators and you would get 5 and 3. Because 5 is bigger than 3, 5/13 is bigger.

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For this problem, do this...

Use combinations for this problem. Substitute the combination formula to get 12!/9!*3!. Then simplify to get 12*11*10/6 which is 2*11*10 which equals 220.

Jimmy can choose his shirts in 220 ways.

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Practice!! 

Here are a few links to practice:

http://www.sosmath.com/algebra/logs/log5/log5.html

https://www.khanacademy.org/math/algebra2/exponential-and-logarithmic-functions/solving-exponential-models/e/exponential-models-word-problems

https://www.analyzemath.com/math_problems/exp_log_problems.html

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