Which expression is equivalent to (18x + 9k) + (2x + 6k)?
A) 16x + 3k
B) 20x + 15k
C) 20x + 16k
D) 36x + 54k
![Which expression is equivalent to 18x 9k 2x 6k A 16x 3k B 20x 15k C 20x 16k D 36x 54k class=](https://us-static.z-dn.net/files/db9/579b744b84aa09208a1a58495f52643f.png)