You would call them a "person" or better yet, call them by their name.
a person who is half English, half Japanese, or someone who is half American, half Japanese
A person who is of both Italian and Mexican descent is commonly referred to as biracial or multicultural.
i know alot of people who are half half native i call them afro natives
You are a Mexican-American. Mexican is a nationality, not a race, so you could be asking something on the lines of what do you get if you mix Charlie Sheen (of Mexican origin) and Ming Na (of Chinese origin), being the case that both are Americans? If you mean white and mestizo, which is the ethnicity of most Mexicans, you have someone with 3/4 white traits and 1/4 Native American.
It's a half black, half Mexican prostitute.
Yes, half white and half Mexican
In the USA Americans who had Asian children call their children Amerasian. There are probably other terms when whites from other countries have Asian children. (what?) If a person is half Japanese and half white they are Eurasian or Japanese-American or American-Japanese. Eurasian is European Asian and Japanese-American is how you would call them if they were white American. You can always make up your own like A half white person and half Chinese person I refer to as with my friends, which I don't recommend using on a daily basis is, Chonky, white on rice, yed necks. Japite or Whitap can be a half Japanese half white person.
Selena Gomez is half Mexican and Italian.Gomez is 50% Hispanic and 50% Caucasian
Yes. Munky is half Mexican and half Italian.
Demi lovato is half mexican and half amarican
He is Half-Mexican becaus his dad is mexican.
He is possibly a Mexican, but he is probly half Mexican