Which of the following situations represents a proportional relationship? A. A cheeseburger is $7.95 plus $1.00 for each additional topping.
B. A pool fills at a rate of 90 gallons per hour.
C. A health club charges a $40.00 membership fee plus $25.00 per month.
D. A bank account begins with $350.00 and gains $30.00 per month.

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet