Problem: Mantua is the ancestral city where the male line of the Gonzaga dynasty ruled, first as marquesses, then after 1540 as dukes, in vassalage to the Holy Roman Empire. Monferrato was a duchy since 1574 on the eastern side of Piedmont, and an Imperial fief since the eleventh or twelfth century. The Gonzagas had enlarged their realm with Monferrato after receiving it in dowry from the wife of duke Frederick II Gonzaga. On 22 September 1612, Francis IV, Duke of Mantua and Monferrato died at the age of 26. His death occurred only a couple of months after the death of his father Vincent I, Duke of Mantua. He left only a three-year-old daughter, Maria of Mantua. Francis IV also had two younger brothers who, both being cardinals, could not marry and were thus ineligible to succeed to Mantua's throne. Nonetheless, Francis' two brothers, Ferdinando I and Vincenzo II , eventually did become Dukes of Mantua. Despite marrying, following the resignation of Ferdinando and the expulsion of Vincenzo from the Sacred College of Cardinals, neither produced any legitimate children. A crisis erupted when Vincenzo II died on 26 December 1627 at the age of 33, the same day that his niece Maria Gonzaga's marriage with Charles de Nevers was celebrated. Nevers was the eldest son and heir of Charles, Duke of Nevers, Rethel and Mayenne. Moreover, he was the head of the cadet branch of the House of Gonzaga, and after Vincenzo II, heir male of the Duchy of Mantua.
Answer this question based on the article: How many children did Francis' brothers, Ferdinando I and Vincenzo II have?
A: 0

Problem: The U.S. public debt was $909 billion in 1980, an amount equal to 33% of Americas gross domestic product (GDP); by 1990, that number had more than tripled to $3.2 trillionor 56% of GDP. In 2001 the national debt was $5.7 trillion; however, the debt-to-GDP ratio remained at 1990 levels. Debt levels rose quickly in the following decade, and on January 28, 2010, the U.S. debt ceiling was raised to $14.3 trillion. Based on the 2010 United States federal budget, total national debt will grow to nearly 100% of GDP, versus a level of approximately 80% in early 2009. The White House estimates that the governments tab for servicing the debt will exceed $700 billion a year in 2019, up from $202 billion in 2009.
Answer this question based on the article: How many years did it take to triple the US public debt from 1980?
A: 10

Problem: The 2010 United States Census reported that Marin County had a population of 252,409. The racial makeup of Marin County was 201,963 (80.0%) White (U.S. Census), 6,987 (2.8%) African American (U.S. Census), 1,523 (0.6%) Native American (U.S. Census), 13,761 (5.5%) Asian (U.S. Census), 509 (0.2%) Pacific Islander (U.S. Census), 16,973 (6.7%) from Race (United States Census), and 10,693 (4.2%) from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 39,069 persons (15.5%).
Answer this question based on the article: How many in percent from the census weren't Hispanic or Latino?
A:
84.5