-9 is a rattional number because it is an integer and it can be squared.
Answer:


Step-by-step explanation:




<span>written in standard form
</span><span>
7.12 x 10^-3 = 0.00712
hope it helps</span>
Answer:
I think it's 140 not sure
<span>40.4% I would say but if you need the whole problem I can give it to you.</span>