Answer:
k = 5
Step-by-step explanation:
-2k = k - 7 - 8
Combine like terms
-2k = k - 15
add 15 to both sides
-2k + 15 = k
Add 2k to both sides
15 = 3k
Divide both sides by 3
k=5
Hope this helps!
Answer:
4.
or -5 (It's a negative slope)
5. 0 (It's a horizontal line)
6. 
Formula: 
Answer:
Step-by-step explanation:
Next term of the given AP can be obtained by adding common difference (d) in the last term

Answer:
1/11
Step-by-step explanation:
12 + 8 + 2
22 / 2
1/11
There is always a pair of socks... A pair is 2. Add everything and divide it.
Hope this helps....
The graph is misleading because it appears to be showing a huge increase, however, it is showing this increase over a huge time span of 13 years, which is actually quite a small amount for only a few hundred customer increase.