Question: 1. From a recent U.S. Census Bureau, the portion of the U.S. population under 18 years old was 0.273. What percent of the population was under 18 years old?
2. A recent consumer expenditures survey showed that the portion of total expenditures for telephone services that was spent on cellular phone service for persons under 25 was 0.752. What percent of this age group's total expenditures on telephone service was spent for cellular phone services?