Malcolm deposits $7,500 in an account that pays 4.6% interest rate compounded continuously. How long will it take for Malcolm's balance to double? Round to the nearest tenth of a year.

(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.