I dont know how to do that but maybe multiply the numbers together
not saying that the right way to do it
Answer:
Option B. 
Step-by-step explanation:
we know that
The volume of the square pyramid is equal to

where
b is the length side of the square base
H is the height of the pyramid
we have


substitute


C= 2πr, and 2r = D (diameter). So, you can also use this equation: C =D<span>π
Since we know the diameter, and we know the value of </span><span>π, we can easily calculate the value of circumference.
C = D</span><span>π
C = 3.21</span><span>π
</span><span>This means that the correct answer is B. 3.21 pi</span>
The answer is what I have attached as an image. There are two ovals. The oval on the left is the input oval with the numbers -2, -1, 3 and 6 inside. There are arrows connecting those values to the number -4 in the other oval, which is the set of outputs. This relation is a function. The reason why is because each input leads to exactly one output.
in the like term you can add directly and make it single fraction and in unlike term you have to take LCM of denominator .