Answer:
A 256/3
Step-by-step explanation:
1/3 * 4^4 =
1/3 * (4*4*4*4) =
1/3 * 256 = 256/3
The first graphed rational number is at the middle of -2 and -1, thus the number represented is

The second graphed number is five out of six places from from 0 to 1, thus the number graphed is

The difference between the two numbers can be represented as

or

To find the difference,

Also,
9x+12=5x+4
9x-5x=12-4
4x=8
x=8/4
x=2