Can someone plz help

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

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

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom