42. The number of decibels, d, produced by an audio source can be modeled by the equation d = 10 log(K),
where I is the sound intensity of the audio source and
K is a constant. How many decibels are produced by an
audio source whose sound intensity is 1,000 times the
value of K?
F.4
G. 30
H. 40
J. 100
K. 10,000

Ibelieve the answer is going to be b

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

Where are the startments?

It would have to be c or d