Respuesta :
a $15 tip was 20%, so
[tex]15 = .2 \times meal \\ 15 \times 5 = .2(5) \times meal \\ 75 = meal[/tex]
[tex]15 = .2 \times meal \\ 15 \times 5 = .2(5) \times meal \\ 75 = meal[/tex]