Respuesta :

To find 28% of $80, we have to first convert 28% to decimal, then multiply $80 with it.

28% = 28/100 = 0.28

Now,

[tex]0.28\times80=\$22.4[/tex]

The total amount of bill INCLUDING the tip is the total bill added to the tip amount. That is:

[tex]80+22.4=\$102.40[/tex]

Total Amount:

$102.40