Question 878595
Hello,

So first we need to find the area of the yard which is simply length times width:

34 yards x 48 yards = 1632 square yards. Question 1.

Next,

we need to find the area of the coverage which is simply length times width:

1.41 feet x 1.03 feet = 1.4523 square feet. Question 2.

Lastly, 

we need know that each additional foot increases the coverage by 10%, so 7 feet, which is only one additional foot, has 10% more coverage so that is the first part answer to question 3. 

We take the coverage from 6 feet and multiply it by 10%:

1.4523 square feet x 10% = .14523 square feet. 

So at 7 feet, the coverage is 1.4523 square feet + .14523 square feet = 1.59753 square feet of coverage.
Question 3.

I hope this helps!