Answer:
Step-by-step explanation:
if you can use negative numbers then you could use 21 and -15
so
adding them together is 21 + (-15) = 6
and then subtracting 21 - (-15) =
21 + 15 = 36
do you think that would work ? :/
Answer:
Area of the circle = 
Step-by-step explanation:
Radius of the circle= 
Area of the circle= 
As,

Area of the circle is:

The Area of the circle is : 
Answer: the x or the input of a function
Step-by-step explanation:
I think the correct answer is b