Respuesta :

$9.24 would be the total (couple extra decimals after it do not count as it's not counted over in real life nor could a penny be split)
tipmilk
To get answer: 

$8.64 times 0.07 = 0.6048, right? 0.6048 is also known as 60 cents. 

$8.64 + .60 = $9.24. 

The final answer is $9.24!!