Cashapping whoever do all of em right

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

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

How do you write something in scientific notation?