Answer:
17
Step-by-step explanation:
They are vertical angles so they are the same angle.
51 = 3x
Divide each side by 3
17 = x
42. The mean is the total of the numbers divided by the amount of numbers. In this case the amount of numbers is 7 and the mean is 6. That means that the total of the numbers divided by 7 equals 6. To find the total you just do the opposite, multiply 7 by 6 and you get 42.
Answer:
31?
Step-by-step explanation:
Answer:
hexagon and triangle
Step-by-step explanation: