Help please i need ASAP

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?