How do you know that each of these constructions is valid when it is made with a compass and straightedge?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

One hectometer is a) 1/1000 of a meter. b) 1/100 of a meter. c) 10 meters. d) 100 meters. e) 1000 meters.