Answer:
42
Step-by-step explanation:
180-42=138
180-138=42
<span>-7 • (a4 - 81a2 - 162)27
-------------------------------- hope it helps
27</span>
Answer:
2/3
Step-by-step explanation:
.that's the answer
Answer:11.23 billion message me if you need explanation
Answer:
7
Step-by-step explanation: calculate the prime factors of 7 and 21, than find the greatest common factor