Problem: At the 2000 United States Census, 1,953,631 people inhabited the city, and the population density was 3,371.7 people per square mile (1,301.8/km). The racial makeup of the city in 2000 was 49.3% White, 25.3% African American, 6.3% Asian, 0.7% American Indian, 0.1% Pacific Islander, 16.5% from some other race, and 3.1% from two or more races. In addition, Hispanics made up 37.4% of Houstons population in 2000, while non-Hispanic Whites made up 30.8%. The proportion of non-Hispanic whites in Houston has decreased significantly since 1970, when it was 62.4%.
Answer this question based on the article: How many percent of people were not Native American?
A: 99.3

Problem: There were 58,110 households, of which 25.8% had children under the age of 18 living with them, 40.6% were married couples living together, 9.7% had a female householder with no husband present, and 46.1% were non-families. 31.7% of all households were made up of individuals and 9.4% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.87. In the city, the population was 20.3% under the age of 18, 17.3% from 18 to 24, 28.5% from 25 to 44, 21.8% from 45 to 64, and 12.1% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 94.0 males. The median income for a household in the city was $35,850, and the median income for a family was $48,527. Males had a median income of $35,549 versus $26,721 for females. The per capita income for the city was $21,315. About 8.7% of families and 17.1% of the population were below the poverty line, including 14.8% of those under age 18 and 7.1% of those age 65 or over.
Answer this question based on the article: Which age group was the largest?
A: 25 to 44

Problem: Work commenced on 9 July 1944, and S-50 began partial operation in September. Ferguson operated the plant through a subsidiary known as Fercleve. The plant produced just of 0.852% uranium-235 in October. Leaks limited production and forced shutdowns over the next few months, but in June 1945 it produced . By March 1945, all 21 production racks were operating. Initially the output of S-50 was fed into Y-12, but starting in March 1945 all three enrichment processes were run in series. S-50 became the first stage, enriching from 0.71% to 0.89%. This material was fed into the gaseous diffusion process in the K-25 plant, which produced a product enriched to about 23%. This was, in turn, fed into Y-12, which boosted it to about 89%, sufficient for nuclear weapons.
Answer this question based on the article: Where was material produced first, S-50, or K-25?
A:
S-50