(Q7) There are currently approximately 80 million U.S. adults age 18 - 39 and approximately 4.2 million Dutch (Netherlands) adults age 18 - 39. Using the results of the study, predict the number of adults age 18 - 39 in these two countries whose physical activity level would place them in the "Active" or "Very Active" categories. Approximately 36.8 U.S. adults in the 18-39 age group would be labeled as active or very active. Wrong Solution Solution 46% of 80 million is 36.8 million. So, approximately 36,800,000 U.S. adults in the 18-39 age group would be labeled as active or very active. Approximately Dutch adults in the 18-39 age group would be labeled as active or very active. Round to the nearest hundred thousand