Manifest destiny was the idea that the United States would stretch from sea to sea as a beacon of liberty. Texas had lots of American immigrants at the time and had a lot of slave plantations that could of extended the south. Texas also had recently broken free from Mexico, and was made by American settlers who made their government based on the US. So, because of all this, America decided to annex Texas and incorporate it into the Union.
Borders, the countries want more land to represent them and have more power and if they have that then they also have more oil and water.
To force a bill out of committee, a DISCHARGE petition must be signed by a majority of the representative.
Discharge petition means that a bill it brought out from the committee and to the floor for consideration without a report from the committee and without the cooperation of the leadership. It usually is associated with the U.S. House of Representatives. A discharge petition in modern times requires the signature of an absolute majority of House members (218 members).
I believe it's asking you how many votes you need to get the majority. example: in a presidential election, more than 50% is the majority.