The property is commutative property also known as flip flop property to some people
hi <3
439.612, 439.261, 439.216, 439.126
hope this helps :)
A=πr²
pool=π(y-4)²=π(y²-8y+16)
total=π(y+4)²=π(y²+8y+16)
walkway=total-pool
walkway=π(y²+8y+16)-π(y²-8y+16)=
π(y²+8y+16-y²+8y-16)=
π(16y)=
16πy
first option is answer
Answer:
the answer is D
Step-by-step explanation:
