X=21
This is because both of those angles are equal, so you would divide 42 by 2 and get 21
3/9 This is because one third of nine is three. That is also why 3x3=9.
Its already in decimal formation.
Answer:
-1
Step-by-step explanation:
Answer:

Step-by-step explanation:

So the ratio of the number of plates to the number of cups.

hope this helps
brainliest appreciated
good luck! have a nice day!