Which lines are parallel? Justify your answer.
O
O
Lines a and b are parallel because their alternate
exterior angles are congruent.
Lines a and b are parallel because their same side
exterior angles are supplementary.
Lines e and fare parallel because their alternate
exterior angles are congruent.
O
Lines e and fare parallel because their same side
exterior angles are congruent.

Math it's appreciated. (picture provided)

Questions 7-8. use the following table to answer. year 2006 2007 2008 2009 2010 2011 2012 2013 cpi 201.6 207.342 215.303 214.537 218.056 224.939 229.594 232.957 7. suppose you bought a house in 2006 for $120,000. use the table above to calculate the 2013 value adjusted for inflation. (round to the nearest whole number) 8. suppose you bought a house in 2013 for $90,000. use the table above to calculate the 2006 value adjusted for inflation. (round to the nearest whole number)

What makes a trapezoid an isosceles trapezoid?