Answer:
A, 6
Step-by-step explanation:

<em>subtract</em>
from both sides

<em>divide</em> both sides by 

<em>plz mark me brainliest</em> ;)
Answer:
.29
Step-by-step explanation: Subtract first by last
Answer:
240 cubic feet
Step-by-step explanation:
l×w×h
12×4=48
48×5=240
2 is the degree of the respective polynomial