According to an In the News article with the title
"Cuomo Proposes to Cut Spending by $8.9 Billion, Fire 9,800 Workers,"
Governor Andrew M. Cuomo of New York did this because New York State taxes cannot keep up with the loss of Federal Aid.
Answer:
The HCF of 15 and 30 is 15
15=3×5
30=2×3×5
common factor=3×5
=15