Answer:
yes
Step-by-step explanation:
They are absolutely correct. Good Job
Answer:

Step-by-step explanation:
Given the expression 
Using law of indices: 

Also:13+8=21
Therefore:

Use an app called Socratic, take a photo of the questions you're stuck on, then it will help you in stages and show you the answer.
9-3. =6. r^6 is the correct answer
Answer:
It would be 70
Step-by-step explanation:
Round to the nearest tenth 72
the answer is 70 why because if you around to the nearest 10 it would be 70.
Hope it helped brainiest plz