This is a similar shape question.

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

If f(x)= 3x+6 which of the following is the inverse of f(x)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?