Answer:
28.5% Internet users in 2003 were in the United States.
Step-by-step explanation:
We are given the following in the question:
Number of people using the internet =

Number of people in United States =

Percent of Internet users in 2003 were in the United States =

Thus, 28.5% Internet users in 2003 were in the United States.
So to get the sides you need to cube them
(192)^1/3---->5.769
(375)^1/3---->7.21125
7.21125-5.769= 1.44225
3^(1/3)= 1.44225
Answer: A