Michael walks 50 meters in 20 seconds. How many meters does he walk per second?

alternatives:

1
1.5
2
2.5

How does the author's use of hyperbole to characterize jim smily? a) it characterizes smily as an introverted loner who prefers books to people. b) it characterizes smily as a man who is kind and nurturing toward others who are less fortunate. c) it characterizes smily as a man who is evil and vindictive toward any one who crosses his path. d) it characterizes smily as a man who is a risk-taker who willing bets on anything and with anyone.

One of the author’s purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with . . enormous speed

Ok which of peter's lines shows that he is using personal experience to understand the reading?