How many stories does it have?
Answer:no it doesn’t matter what order you add the number.
Step-by-step explanation:
2 plus 3 equals 5
3 plus 2 equals 5
No matter the way you add 3 and 2, you still get 5
Answer: 
Step-by-step explanation:
If the volume of a sphere is
Where 
is the radius
The volume of a hemisphere is half the volume of the total sphere:
Solving this equation:
Finally:
Answer: ( 4,7)
Step-by-step explanation:
9,2.5,-4,-10.5,-17
Let's find the difference between two consecutive terms
2.5 - 9 = -6.5
-4 - 2.5 = -6.5
-10.5 - (-4) = -6.5
-17 -(-10.5) = -6.5
We can see that the common difference is -6.5
-6.5 is the common difference between successive terms in the sequence 9,2.5,-4,-10.5,-17
the common difference is negative because we subtract 6.5 to get the next term.
