You're correct, it is B. If you plug in 3 (weeks) in for "x" and 19 (amount saved) for "y" you will get 0=0, which is a solution.
12 inches x 12 inches equals square foot
equals 144 square inches
Answer:
Ans =C(4,1),(-4,1),(4,6),(-4,6)
The formula for the area of a circle is A = (pi)r^2
So if you plugged in the numbers you would get this equation A = (3.14)97^2
Solve the equation and you would get your answer which is 29544.26
Hope this helps! :)