Is this a multiple choice question? If so what are the options?
My guess is 21
Answer:
D
Step-by-step explanation:
there were three times as many new subscribers in the 20-29 and the 30-39 age groups combined for the chronicle than in the 20-29 age group for the times.
Answer:
3(x - 10)
Step-by-step explanation:
3x - 30 = 3(x - 10)
Because if you ask one student from each class you are getting a more accurate representation of the classes. If you were to ask one group you'd only get their opinion