This was 2 week ago how do I look 1 through 10

What are the domain and range of the function? f(x) = -4 (sqrt)x

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.

Which statement justifies why angle ebc measures 90?