Answer:
b=12
Step-by-step explanation:
3b +24= b +48
-24 -24
3b = b+ 24
-b -b
2b = 24
÷2 ÷2
b=12
Answer: 
Step-by-step explanation:
This is what it is as a mixed number

= 
= 
If you want it written in exponential form it would look like this:

Post a full photo of all the other graphs
The most probable answer if you pull one out would be you pull a green marble.
X+5=8
x+(-7)=-4
4+x=7
7-x=4
3-x=0
-9×x= -27
those are just a few options