Answer:81030m
Step-by-step explanation:1km=1000m, 81km=81000+30=81030m
<span>"the square of the sum of a number and 4 is 36"
=
</span><span>(x + 4)^2 = 36
</span>
X=31, the other post justifies, I just wanted to make it more accessible for if someone just needs the answer :)
Answer:
idk
Step-by-step explanation:
idk