Answer:
(B) It decreases
Explanation:
I figured this out with basic logic, but we can use proof to find it out.
If we have
, we can assume that k is around 10.
So
.
Now let's decrease k by 1, making k=9.
![35+9=44](https://img.qammunity.org/2021/formulas/mathematics/college/i33ink5cdr0mst4579dwdcjgvry1b5q0y6.png)
We can see that the value is decreasing, but let's try one more.
Let's make k=8.
![35+8=43](https://img.qammunity.org/2021/formulas/mathematics/college/7gxj4rfik0h8kgkfu17ekotev62ghcqkyn.png)
So we can see the general pattern here is that it's decreasing.
Hope this helped!