george has a goal of walking 9/2 kilometers today. Each time he walks to school and back, he walks a total of 1/2 kilometers. What is the meaning of 9/2 divided by 1/2

(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.