Answer:
The answer would be 3 ft 9 inches.
Step-by-step explanation: Common Multiplication and Division would help, because 12 inches make a foot. So you would multiply 12 by whatever number could be close to 45 inches. Which would be 3. So you would get 36 as a whole leaving 9 to complete to 45 inches. So that would mean 3 ft 9 in. If you divide it as 12/45 you would get 3 remainder 9. Which is would again be 3 ft 9 in.
Hope this helps!