Answer:
-20x^4y + 40x^3y^2.
Step-by-step explanation:
-5x^3y(4x-8y)
= -5x^3y * 4x + -5x^3y * -8y
= -20x^4y + 40x^3y^2
B.
50%
cause 50% is 1/2 and 1/2 of 20 is 10
can you show the number line please
