Answer:
Amy's yearly salary in 2011 was $27,800
Step-by-step explanation:
we have

where
x ---> is the number of years since 2007
y ---> Amy's yearly salary in dollars
To find out what was her salary in 2011, first determine the value of x

substitute the value of x in the equation above


therefore
Amy's yearly salary in 2011 was $27,800
Half of the circumference:
18.84/2 which would leave you with 9.42 feet.
The correct answer is B.
Start from the equation for the circumference and solve it for the radius:

So, the radius of the circumference is
inches
Once the radius in known, you can plug it in the formula for the area:
squared inches.