Problem: Successful mining took time and capital, particularly once most of the timber around the Klondike had been cut down. A realistic mining operation required $1,500  for wood to be burned to melt the ground, along with around $1,000  to construct a dam, $1,500  for ditches and up to $600  for sluice boxes, a total of $4,600. The attraction of the Klondike to a prospector, however, was that when gold was found, it was often highly concentrated. Some of the creeks in the Klondike were fifteen times richer in gold than those in California, and richer still than those in South Africa. In just two years, for example, $230,000  worth of gold was brought up from claim 29 on the Eldorado Creek.
Answer this question based on the article: Which would cost more, creating ditches or buying sluice boxes?
A: creating ditches

Problem: By September 1545, the war was a virtual stalemate; both sides, running low on funds and troops, unsuccessfully sought help from the German Protestants. Henry, Francis, and Charles attempted extensive diplomatic maneuvering to break the deadlock; but none of the three trusted the others, and this had little practical effect. In January 1546, Henry sent the Earl of Hertford to Calais, apparently preparing for an offensive; but one failed to materialize. Francis could not afford to resume a large-scale war, and Henry was concerned only for the disposition of Boulogne. Negotiations between the two resumed on 6 May. On 7 June 1546, the Treaty of Ardres—also known as the Treaty of Camp—was signed by Claude d'Annebault, Pierre Ramon, and Guillaume Bochetel on behalf of Francis, and Viscount Lisle, Baron Paget and Nicholas Wotton on behalf of Henry. By its terms, Henry would retain Boulogne until 1554, then return it in exchange for two million écus; in the meantime, neither side would construct fortifications in the region, and Francis would resume payment of Henry's pensions. Upon hearing the price demanded for Boulogne, the Imperial ambassador told Henry that the city would remain in English hands permanently. During the treaty negotiations, two Protestant mediators—Han Bruno of Metz and Johannes Sturm—were concerned that Henry's war in Scotland was a stumbling block. The sixteenth article of the treaty made Scotland a party to the new peace, and Henry pledged not to attack the Scots again without cause. This gave Scotland a respite from the War of the Rough Wooing, but the fighting would recommence 18 months later.
Answer this question based on the article: How many years was between the war being in stalemate and Henry sending the Earl of Hertford to Calais?
A: 1

Problem: Following their victory over the Patriots, the Steelers remained at home the next week for their second match-up of the season against division rivals the Baltimore Ravens.  The Ravens scored first with an 18-yard field goal by kicker Billy Cundiff, the only points scored in the first quarter by either team.  Steelers kicker Shaun Suisham answered with a 36-yard field goal early in the second quarter, and a 30-yard field goal near the end, but both of these were quickly matched by Baltimore's Cundiff with a 43-yard and 51-yard field goal, respectively, giving Baltimore a 9-6 lead at halftime.  The Ravens then increased their lead in the third quarter when Ray Rice scored the first touchdown of the game on a 4-yard run.  The Steelers rallied hard in the fourth quarter, with running back Rashard Mendenhall making a 1-yard run to score a touchdown, and then taking the lead for the first time in the game when quarterback Ben Roethlisberger made a successful 25-yard pass to wide receiver Mike Wallace in the endzone for a second touchdown.  On their final drive of the game, the Steelers were ready to potentially increase their lead with a 47-yard field goal kick by Shaun Suisham, but a 5-yard delay of game penalty put them out of field goal range and they were instead forced to punt the ball to the Ravens.  The Ravens then began a 92-yard drive, culminating in a 26-yard touchdown pass by quarterback Joe Flacco to wide receiver Torrey Smith in the endzone with just 8 seconds remaining, giving them the game.
Answer this question based on the article: How many touchdowns did the Ravens score in the second half?
A:
2