Q: if AB is parallel to CD, which statement is true? Answers: A- AB And CD do not intersect B- AB And CD intersect at 90 angles.
C- The perpendicular distance between AB and CD increases as the lines are traversed left to right. D- the perpendicular distance between AB and CD decreases as the lines are traversed right to left.
Okay so you're trying to find the unit rate of 720yds/4min. If you divide 720 by 4 you will have the unit rate as 180yds/1 min or 60 sec then if you divide 180 and 60 by 4 again you will get the answer of 45yds/15sec.