3/5 of 15=n
n=9
So, if you divide 3/5 of 15, you get 9 as your answer.
R(9,0)
S(8,-4)
T(7,4)
V(6,0)
If they are three consecutive integers then they are:
k, k+1, and k+2 and the sum would then be:
s=k+k+1+k+2
s=3k+3

so,

it equals 12.49 or 12.5 depending on rounding
I hope this helps!
Coefficients are y and x
Variables are the number with the letters
The terms are the numbers