Problem: Further work on MPEG audio was finalized in 1994 as part of the second suite of MPEG standards, MPEG-2, more formally known as international standard ISO/IEC 13818-3 (a.k.a. MPEG-2 Part 3 or backwards compatible MPEG-2 Audio or MPEG-2 Audio BC), originally published in 1995. MPEG-2 Part 3 (ISO/IEC 13818-3) defined 42 additional bit rates and sample rates for MPEG-1 Audio Layer I, II and III. The new sampling rates are exactly half that of those originally defined in MPEG-1 Audio. This reduction in sampling rate serves to cut the available frequency fidelity in half while likewise cutting the bitrate by 50%. MPEG-2 Part 3 also enhanced MPEG-1s audio by allowing the coding of audio programs with more than two channels, up to 5.1 multichannel. An MP3 coded with MPEG-2 results in half of the bandwidth reproduction of MPEG-1 appropriate for piano and singing.

What does MPEG-2 mean
Answer: international standard ISO/IEC 13818-3

Problem: Hoping to rebound from their home loss to the Broncos, the Jets flew to Candlestick Park for a Week 14 interconference battle with the San Francisco 49ers. Late in the first quarter, New York trailed early as 49ers offensive tackle Joe Staley recovered Jason Hill's fumble in the endzone for a touchdown. The Jets responded in the second quarter with quarterback Brett Favre getting a 2-yard touchdown run, yet San Francisco would answer with quarterback Shaun Hill completing a 4-yard touchdown pass to running back Frank Gore. In the third quarter, New York tied the game with running back Thomas Jones's 17-yard touchdown run. However, the 49ers pulled away in the fourth quarter as kicker Joe Nedney nailed a 32-yard field goal, along with Hill completing a 3-yard touchdown pass to wide receiver Bryant Johnson.

How many yards difference was Brett Favre's touchdown run compared to Thomas Jones's touchdown run?
Answer: 15

Problem: There were 2,380 households of which 18.4% had children under the age of 18 living with them, 28.6% were Marriage living together, 6.3% had a female householder with no husband present, 3.2% had a male householder with no wife present, and 61.9% were non-families. 32.1% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.82.

How many in percent of households didn't have children under the age of 18 living with them?
Answer: 81.6

Problem: In the winter of 1240/1241, the Novgorodians took Pereyaslavl-Zalessky. After, the Teutonic knights constructed the fortress of Koporie, where they kept all their supplies, and took the Novgorod city of Tesov, pillaging its merchants and ravaging the surrounding area. The Novgorodians, fearing a fate similar to that of Pskov, sent envoys to Prince Yaroslav. Yaroslav liked Alexander's younger brother Andrew as a leader, but Novgorod insisted on Alexander. Alexander returned to Novgorod and commanded its army to Koporye in 1241. In the Spring of 1242, he recaptured Pskov. After this victory, Alexander decided to continue his campaign.. On April 5, 1242, one of Russia's most famous battles, the Battle of the Ice, took place on the ice of Lake Peipsi. The battle was a significant defeat sustained by the crusaders during the Northern Crusades. The crusaders' defeat in the battle marked the end of their campaigns against the Orthodox Novgorod Republic and other Russian territories for the next century.

Which happened first, the construction of the fortress of Koporie or Alexander's recapturing of Pskov?
Answer:
the fortress of Koporie