Which is the right answer?

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.