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Tara's meal cost $8.60.  She had to pay sales tax of 7%.  Then she left a 10% tip based off the new total.  What did she spend altogether?  

 Mar 18, 2021
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\(860 \cdot \frac{100 + 7}{100} = 920.2\) (but you have to round it since you can't have fractional cents)

Now add the 10% tip:
\(920 \cdot \frac{100 + 10}{10} = 1012\) 

 

Which means she spent $10.12 altogether :)

 Mar 18, 2021

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