I am using the laws:
1)

2)

3)

an x is a base - the law is valid if the bases are the same number!
The solution in attachment :)
There is not a formula for everything need more data
Answer:
it's not 16/,13 ; )
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
If OR = 20,
PR = 5
<u><em>OP would be</em></u>:
=> 20+5
=> 25
Answer:
it's 100
Step-by-step explanation:
70000
0000
600
80
1
I don't know if you understand