Respuesta :

Given the following question:

Total cost = $80

You want to leave a 15% tip, which means 15% of the total cost

[tex]\frac{15\times80}{100}=15\times80=1200\div100=12[/tex]

15% of 80 is 12 so...

80 + 12 = 92

92 is the total amount including the tip

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