Answer:
70
Step-by-step explanation:
By exterior angle theorem:

Answer:
x=15
Step-by-step explanation:
Since both lines are parallel, and one line goes through them, angle (3x+2) and 47 are congruent
3x+2=47
3x=45
x=15
21/7=3 With $21 you can buy 3 tickets at $7 a piece.
Answer:
9
Step-by-step explanation:
30 - (9+4 x 3)
30 - (9 + 12)
30 - 21
= 9