The Question To It Is Find the length of the third side. If necessary, round to the nearest tenth​

Acircle has a circumference of 7.850 units. what is its radius?

(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.

What is the answer to this problem? ignore the work. what is the correct answer?