Answer:
5
Step-by-step explanation:
3(2n-7)=9
^ ^
6n-21=9
<u>+21 +21</u>
<u>6n</u>=<u>30</u>
6 6
n=5 :)
c=45
36^2+27^2=c2
1296+729=c2
2095=c2
Then square root it to get
It depends what the problem requests
