Joseph wants to find out what customers at his restraint think about the food and the service. He creates a survey for diners to fill out at the end of their meal with three questions: 1) Please rate the food from 1–10, where 1 is yucky and 10 is delicious; 2) Please rate the service from 1–10 were 1 is unacceptable and 10 is outstanding. What kind of question format is Joseph using?