Answer:
a.138 degrees
b.42 degrees
Step-by-step explanation:
The answer is b and i know that cause just david’s
Answer: 1430
Step-by-step explanation: x + y + z = 2680
x = 2z - 100
y = 3z + 80
x + y = 5z - 20
6z - 20 = 2680
z = 450
y = 1430
Solution:
x = 800, y = 1430, z = 450
Answer:
6
Step-by-step explanation: