Answer:
The answer for first one is,
a³
Answer for Second one is,
n.
Answer for 3rd one is.
-3y
Answer for number four.
x⁹
sorry couldn't answer number 5.
Step-by-step explanation:
Answer:
62.83
because you take 20, divide it by 2 to get the radius then you have the equation 2π(10)
