The ratio of red cars to blue cars in a parking lot was 5:3. If there were 10 red cars, how many blue cars were there?
I

6 Cars

Step-by-step explanation:

let the number of blue car be x.

5:3=10:x

or,5/3=10/x

or,5x=30

or,x=30/5 •°•x=6

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)