When he says this line "a knavish speech sleeps in a foolish ear" he is telling Rosencrantz that his good advice has been lost on his "friend's" stupidity and desire to be in the good graces of the king.
Answer:Swim off with sure strokes
Explanation: Alliteration: repeating sounds at the start of a word
Swim, sure, strokes, all begin with the s sound.
4s^-1
Answer: 4/5
2^-4r^3s^-2
Answer: -27/400
Answer: Cell-phone usage should be embraced at public schools as a means of information acquisition
Explanation:
An argument topic would be one that suggests something should be done in a certain way or is a certain way. It is therefore an opinion on how things should be done.
From the options, the first cannot be presented as an argument as it is simply a statement of fact. The same goes for the second and third options. The fourth option however, suggest that cell-phones should be used to get information in public schools. It is therefore an opinion and can be presented as an argument.
Your answer would be:
US citizens are required to (options not shown). (Voting) is a privilege that only US citizens can exercise, but it is not required.
hope this helps :)