How do you represent 1 and 1 half and 1 half in a picture

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

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1