At a gymnastics competition, Joey scored 9.4, 9.7, 9.9, and 9.8. Carlos scored 9.5, 9.2, 9.7, and 9.6. Who had the greater average score? By how many point was his score higher?

Respuesta :

add joey's all together then add Carlos's all together, see who has a greater amount, then subtract to see how much is left. 
Joey's score was higher. It was higher by .8 points