Answer:
b = 60
Step-by-step explanation:
The sum of the angles of a triangle are 180
80+40+b = 180
Combine like terms
120+b =180
Subtract 120 from each side
b = 180-120
b = 60
Answer:
9 IS THE ANSWER
Step-by-step explanation:
3*3=9
Answer:
use blue red blue red
Step-by-step explanation:
Answer:
7
Step-by-step explanation: 6 + 5 + 8 + 5 + 9 + 6 + 7 + 5 + 12 = 63 so now u just divide that by 9
The median is 12.
The arithmetic mean is 12.7
The geometric mean is 11.3