a 16% tip is left on a 42.50 lunch bill. How much is paid altogether
[tex]42.50 + 42.50 \times 16\%[/tex]
[tex] = 42.50 + 42.50 \times 0.16[/tex]
[tex] = 42.50 + 6.8[/tex]
[tex] = 49.3[/tex]
$49.30 is paid altogether
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