Rectangle a is 15cm long. rectangle b is 40cm long and its width is 8 less than rectangle a. the area of rectangle b is double rectangle a. what is the width of rectangle b?

The width is 24. 

You can get this by setting the rectangle A width to x and the rectangle B width to x - 24. Then set the area of A multiplied by 2 equal to the area of B. You can then solve for x. 

1. At what time do you typically wake up? 
2. What do you eat for breakfast?
3. Do you normally shower in the morning or night? 
4. How many times do you brush your teeth every day? 
5.  At what time do you go to sleep (lay down)? 

**I gave it my best shot--I don't speak Spanish so don't hate me if I made a mistake ;)