Answer:
-2n²
Step-by-step explanation:
Using the image attached:
We see that the second differences (blue ones) are all equal so we conclude that this is a quadratic sequence.
The quadratic sequence has the form:
To find the value of a we just divide second difference ( -4 ) by 2:
Now we have:
Substitute 
and 
into the equation above:
Since 
= -2 and 
= -8 , after simplification we have:
The solution of this system is:
The general term is :
12/15
Divide 12 by 15 and then you should get 0.8
0.8 is obviously equal to 8/10ths or 80%
Hope this helps :)
126 because if you multiple 21 and 6 it’s gives you 126
Answer:
the answer is d
Step-by-step explanation:
Karen sells 7 hot dogs per hour while Henry sells 14 hot dogs .
<span>The rate that Henry sells hot dogs is double the rate that Karen sells corn dogs.</span>
