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## InsanityxP 2 years ago When he goes out to eat, Austin always leaves a tip for his server that is equal to 15% of his bill. Let f = the amount of the bill. Which algebraic expression could be used to calculate Austin's total cost of eating out at any restaurant?

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1. helder_edwin

if $$f$$ is the amount of the bill and he leaves a 15% tip then the total cost would be $\large C=f+f\cdot15\%=f\cdot(1+0.15)=1.15f$

2. InsanityxP

So f.15 would be the algebraic expression?

3. helder_edwin

1.15f

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