Simplify: -10(2r - 4)

Simplified -20r + 40

Step-by-step explanation:

Step 1: Use the distributive property. -10(2r - 4)    

-10 x 2r = -20r and -10 x (-4) = 40

(If you are multiplying two negative integers your answer will always be positive.)

Step 2: Simplified (-20r + 40)

A: if you cut it parrallel to the base, it will take the shape of the base, and the base is a rectangle, so it will still be a rectangle.

B: if you cut it perpendicular to the base, it will take the shape of the side face, making it a square

Step-by-step explanation: