1. In the diagram, AB is parallel to CD. X
A
— В
72°
C С
D
(a) Work out the size of the angle marked X.
(b) Give a reason for your answer.

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?