Answer:
L = 70 W = 40
Step-by-step explanation:
P = 220 ft
W = L - 30
I started guessing numbers for L that would work. When I did this, I made sure that all of the sides added up to 220 ft.
A*2 + b* = c*2
(9)*2 + (8)*2
81+64= 145
145=c*2
12.04=c
540 seconds which is equal to 9 minutes.