Answer:
the question is not complete. but with the information you gave 6% of 12000 is 720, the number of students increase by 720 each year
5x+3(x-2)=90
5x+3x-6=90
8x-6=90
+6 +6
8x=96
\8 \8
X=12
the area would be 4 times more
so 135 x 4 = 540
Common Ratio<span>. For a </span>geometric sequence<span> or </span>geometric series<span>, the </span>common ratio<span> is the ratio of a term to the previous term. This ratio is usually indicated by the variable r.</span>