I believe that the answer is speed in this situation but I'm not 100% sure
Answer:
is that a question?????????????
Looking at the question we can see that it says:

We should know what these symbols mean:
stands for something less than the other, for example:
We can say that 2 is less than 5 so in a symbolic form it can be written as,
Similarly,
stands for something greater than the other, for example:
We can say that 7 is greater than 5, in a symbolic form it can be written as,

So here,
means that, 42153 is greater than 35214.
Answer:
It's a property of log() or ln() functions. It's states:

in other word, subtraction of log functions could be combined to a quotient in the log function.
Answer:
see below
Step-by-step explanation:
4/9x-10>x/2-12
Subtract 4/9 from each side
4/9x-4/9x-10>x/2 - 4/9x-12
-10>x/2 - 4/9x-12
Add 12 to each side
12-10>x/2 - 4/9x
2 > x/2 - 4/9x
Get a common denominator
2 > 9x/18 - 8x/18
2 > x/18
Multiply each side by 18
2*18 > x
36 >x
Open circle at x
Line going to the left