Question 699282
The school board has voted to have the school track repaved,
 what is the total expense if the charge is $3.20 per square foot?
 It also says to use 3.14 for pi. the track is a outer rim and has a width 20
 feet the inside circle has a radius of 200 feet.:
From the information given the outer radius which includes the track is 220 ft
:
Find the total area of this
A = 3.14*220^2
A = 151976 sq/ft
:
The inner circle are is not paved, find the area of that
A = 3.14*200^2
A = 125600
:
Paved area = 151976 - 125600 = 
:
multiply this answer by 3.20 to find the Cost to pave the track