In a rectangle, the ratio of the width to the length is 4:5. If the rectangle is 40 centimeters long, find its width.
A. 32 cm.
B. 36 cm.
C. 44 cm.
D. 50 cm.

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.