Answer: There is 14 yards of fabric he should buy.
Explanation:
Since we have given that
Dimensions of a table cloth needed is as follows:
Length = 8 feet
Width = 12 feet
Since we must add an additional 6 inches on each side .
So, Length becomes = 8 feet + 6 inches
As we know that
1 feet = 12 inches
So, length becomes = 8×12+6=96+6=102 inches
Similarly, width becomes = 12 feet + 6 inches = 12×12+6=144+6=150 inches
So, total length of fabric he should buy is given by

So, Total length of fabric in feet becomes,

Total length of fabric in yards becomes,

Hence, there is 14 yards of fabric he should buy.