Jillian is 5 years old. She has an older brother whose age is represented by the expression 2x+3, where x represents Jillian's age. How old is her brother?

Determine whether the question is a statistical question. explain. 1. what is the eye of sixth grade students? 2. at what temperature (in degree fahrenheit) does water freeze? 3. how many pages are in the favorite books of students your age? 4. how many hours do sixth grade students use the internet each week? you!