Answer: X-3(2x-8)= -25
A. X= 11
B. X= 14
C. X=10
D. x=5
Step-by-step explanation:
Answer:
The error is at step (3) .
The correct step (3) will be,

=
[by using the laws of indices]
All other steps are correct.
Step-by-step explanation:
The error is at the step (3) , because the student has tried to prove the quotient rule of logarithms by using the property i.e., 'The quotient rule of logarithm' itself , i.e. ,by assuming the property does hold before proving it. So, the proof is fallacious.
The correct step (3) will be,

=
[by using the laws of indices]
All other steps are correct.
8 increased by 20% is 9.6 i hope this helps :)
1) 0.4
2)0.875
i dont know the 3 and 4 one