Answer:
r^2=(A/pi)
Step-by-step explanation:
if A=pi*r^2 then maybe dividing by pi to get r^2 alone says r^2=(A/pi) or to get rid of the exponent you may square root each side so r=(sqrt(A/pi))
Answer: Should be -5
Step-by-step explanation:
574.54-396.23= 178.31
So Y=178.31
When you're out shopping and something you want to buy is on sale. You can take the original price and give it's percentage to find out how much it really is.