Answer:
40 more inches of fabric is needed to cover the entire table.
Step-by-step explanation: you add ten inches to every end of the table
The answer that has no solution is C
Answer: Option B.

Step-by-step explanation:
If a varies directly with b then when a increases b it also increases by a factor k.
Then we can write that

We know that when a = 28 then b = 7. So



Therefore the equation of proportionality is:

So when
then:

A - 3
Using the coordinates of the diameter, it is possible to figure out the radius.
Using the y axis, you can determine that 4 and -2 total to be six apart, leaving the diameter to be six. Knowing that the radius is half of the diameter, you can easily split the diameter in half to get the radius of 3.
Hope this helps!