Complete the proof to show that abcd is a parallelogram. the slope of it is and because the therefore, abcd is a parallelogram because
a. both pairs of opposite sides are parallel.
b. lengths of consecutive sides are not equal
c. slopes of opposite sides are equal
d. lengths of opposite sides are equal
d. slopes of consecutive sides are not equal

Atravel agent is booking a trip to england, scotland, ireland, and france for a group of senior citizens. the agent sent surveys to the group, asking which countries they would like to visit, in order, and created the shown preference schedule (e = england, i = ireland, s = scotland, f = france). which country is the condorcet winner? number of votes 15 12 16 19 1st f e e i 2nd e s i s 3rd s i s e 4th i f f f 1. scotland 2. england 3. france 4.ireland