$\"\"$

The formula for perimeter P (in feet) of track is $\"\"$ .

Solve $\"\"$ for x.

Subtract $\"\"$ from each side.

$\"\"$

Divide each side by 2.

$\"\"$

Cancel common terms.

$\"\"$ . $\"\"$

Substitute the values of 660 feet for P and 3.14 for $\"\"$ in the formula $\"\"$ . $\"\"$

$\"\"$

Therefore substitute values $\"\"$ for r to obtain corresponding x values.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$

(a) The value of $\"\"$ and (b)Make the table

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \