Respuesta :
Well originally there had to be 35 ounces because he drank 15 ounces then 20 ounces were left so you add 15 to 20 to get 35(15+20=35)
Well originally there had to be 35 ounces because he drank 15 ounces then 20 ounces were left so you add 15 to 20 to get 35(15+20=35)