Answer:
The sheet is 35 inches short
Explanation:
The problem seeks to test our idea on unit conversion
Step one
To tackle this let us convert foot to inches from the length of the bed
1foot =12 inches
9feet =x inches
x inches =9*12
x=108 inches
Step two
But the length of the bed is 9feet 6 inches long
Hence the length in inches we need to add the extra 6 inches
Which 108+6=
114 inches
Step three
Now the sheet used is 79 inches
What were they thinking you might want to ask?
Obviously 79 inches is way too short for the bed
By how much?
114-79=35 inches