How do i factor this expression
-18r-6s

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Find cot x if sin x cot x csc x = √2

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?