Cooper was out at a restaurant for dinner when the bill came. His dinner came to $18. After adding in a tip, before tax, he paid $20.34. Find the percent tip.

Respuesta :

Answer: Copper paid 13%

Step-by-step explanation:

Answer: 13%

Step-by-step explanation:

$20,34/$18=1.13

1.13x100=113%

113%-100%=13%