Each side length of the parallelogram at the right is multiplied by four. describe the change in the perimeter.

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 expressions are equivalent to -6 + 3m

Which of the following expressions is equal to 2x^2+8