
If two similar waves are traveling in the same medium, then they have same wave velocity. so we can infer that

Now, as per the formula ~ we know that :

Now, we can write it as :

And it's also given that frequency of wave A is 3 times that of frequency of wave B.
So, let's add the relation to our equation ~



So, choice C is correct ~
Com-pu-ter, te-le-phone, au-to-mo-bile, traf-fic, sen-try, cor-net, real-is-tic, fan-a-tic, rep-et-it-ious, gi-gan-tic
I think those are right, because usually you hyphenate words if they don't fit on one line, and you're supposed to do that after the syllables. But I don't know if you're supposed to have multiple hyphens in one word..I did a hyphen at all syllables. Hope this helps you!
Answer:
#5: An ongoing theme.
#6: Little red riding hood walking in the forest with a basket of bread to her grandmother house until she came across by a wolf.
#7: Comedy because the grandmother was locked away and the wold was disguise as the grandmother.
Explanation: hope this helps :)
That there was a fire. That a while ago fire was dramatic and popular.