Answer:
9
Step-by-step explanation:
k=13
3k+6+4k-7+90=180
7k+89=180
k=180-89/7
See the attached for the proof
16.8/3=5.6
5.6/12=0.467
It moves 0.467 feet per minute.
2*7b =
use the distributive property
14b
