Which value of a would make the expression 5 1/3÷4/a equivalent to a whole number?

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

Restrictions on f(x) = 1/x+5 and g(x) = x-2

What is the shape of the height and weight distribution