Answer:
a=12
Step-by-step explanation:

Answer:
1/2 of the possibilities are even number
Step-by-step explanation:
Add all of the sides together, you get 12, count on even numbers until you get to 12. 2,4,6,8,10,12. that's six numbers which is half of 12. so half of the possibilities are even.
It has a y intercept of 1 rather than 0.
It is shifted one unit up.
Since line c and d are parallel, line a can act as a transversal. Thus, x=124 degrees because of the alternate exterior angle relationship that can be seen.
The length is 0.5 and your welcome the explanation is long but this is the answer