The 8 inch one
8/4=2
10/6= approx 1.66666666666666
40 / 240 is 1 / 6 which is 16.6666666667%, 15 is slightly less so the offer is NOT more than what jim asked for
You multiply 11.5 by .90. that will give you 10.35
Answer:
It is the third option
Step-by-step explanation:
ln(xy)=ln(x)+ln(y)
ln(x/y)=ln(x)−ln(y)
ln(xy)=yln(x)
use these three rules, first separate the fraction out to log(
, then take the exponent and root out to make 
Y = 3
If you'd like an explaination, please, ask.
I just don't want to write all of the steps out -- yey, apathy.