Since ABCD is parallelogram these rules apply:
Since
this implies that 
The answer is D.
Hope this helps.
r3t40
Answer:
X=36
Step-by-step explanation:
90-54=36
Right angle 90 subtract 54
The missing angle x is 36
Answer:
80% because if she finished her project it would be 100%, but if we subtract 20% from 100, it would be 80% so she has 80% left to complete
Step-by-step explanation:
Hope it helps!!!