12/18 in lowest terms

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

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Which of the following is an equation of a line parallel to the equation y=4x+1?