Hello there,
So the question is asking to change the feet into inches and inorder to that we need to know how many inches go into one feet...
- 1 ft = 12 inch
Now that we know that we need to change the feet into inches by multiplying 12.1 by 12...
The question asked to have the same amount of significant digits as the original...
Your answer would be 145 inches.
Hope I helped,
Amna