How do I dilate this figure while k=5/2?

Do I multiply the vertices by 5/2 or do I move the points up 5 and over 2? thanks.

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Acute identify < 1 and < 2 select all that apply of the following acute, right, obtuse, adjacent, vertical, complementary, supplementary

Which phrase best describes the word definition in an axiomatic system? a. the accepted meaning of a term b. the statement of an axiom c. an accepted fact that is not proven d. a fact proven by using logic