Both companies charge the same amount I am assuming you are asking which to go with?<span />
Answer:
The number is 86
Step-by-step explanation:
Let the number be
, then the reverse is 
The sum of the reversed number and the original number is 154,

We simplify this to get:
....eqn(1)
If the ones digit in it is 2 less than the tens digit, then
....eqn(2)
Putt equation (2) in (1)





Put x=8 in the second equation:

The original number is 86
POH is the -log [ OH- ]. Using this equation, simply find the -log of the OH- concentration to find the pOH:
pOH = - log ( 0.000086 ) = 4.07
It’s 5×2 which is 10 hope this helps:)