If you can sing songs like this what type of voice do you have?

Okay, well I'm going to (unvoluntarily) be in chorus this year for school and they want to know if I'm like a saprano, alto, or tenor. I think there is another one, but I'm not sure. If it helps I am a girl, so if anything just goes for guys its not me. I can sing songs like "Maybe It Was Memphis" by Pam Tillis, "Probably Wouldn't Be This Way" by LeAnn Rhymes and "Cowboy Take Me Away" by Dixie Chicks pretty well, but my voice doesn't go very high. I love to sing, but I'd rather be taking art instead and have always taken art, so I don't know much singing terminology. Any help would be amazingly appreciated. Thanks ahead of time!