Answer:
a-x
b-/
Step-by-step explanation:
64/4x4=64
625x25/25=625
Answer:

Step By Step Explanation:
Simplify 

Rewrite Equation

Simplify 

6 - hundred thousand
1 - ten thousands
2 - thousands
3 - hundred
0 - tens
0 - ones
600,000 + 10,000 + 2,000 + 300
Answer:
First calculate 49^8
Then take the square root of that answer.
Final answer is 5,764,801
2z+6+15-9z
-7z+21
Hope this helps