Answer:

Step-by-step explanation:
First distribute the -4 to the 2b and -3b. This leaves you with 
Now you can distribute the 12b to b and +4. This leaves you with 
Now you can combine your like terms leaving you with
.
If the question is asking how much gas there was before it would be 5 gallons. Im confused on what you want for the answer.
9514 1404 393
Answer:
145
Step-by-step explanation:
In this geometry, the central angle (x°) and the external angle (35°) are supplementary.
x° = 180° -35°
x = 145
How many piles the plates are stacked in I think
3(-1)+3(0)=-3
-2(-1)+0=2
The answer is the first one