Answer:
30 items are sold there
Step-by-step explanation:
21/0.7 --> 210/7=30
1. remember all of them add up equal to 360 degree.
2. add all of them up together

3. combine like term then solve for Y
4. you will figure the arc measure of BC when you get answer for Y.
Answer:
the set of first conponent of the ordered pair is called domain
the set of second component of ordered paur is called range