A circle with diameter of StartFraction 7 over 2 EndFraction centimeters.

The radius is cm.

The circumference in terms of π is π cm.

Using 3.14 for π, the approximate circumference of the circle is cm.

(7/2)

=10.99c

"The slope is 2.50 and it represents the cost per mile traveled." is the right answer.

The line goes up 5 over 2 which is equivalent to 5/2. So for every 1 increase in x there is a 2.5 increase in y. This means every mile you travel is $2.50.

Wish you luck on your HW, and May the Force Be With You.

-Jabba