F2 Algebra Question~FAST!

Question 1 :
The order of -15 - 9x + 10y + 6xy = 2
(Order is the highest power ofthe polynomial.)

Question 2 :
The order of 5t - 5w + tw - 25 = 2

Question 3 :
The order of x + 15x² - 6 = 2

Question 4 :
No.
In ascending order, the constant termis in the front.
In descending order, the constant term is in the back.
In random order, the constant term can be at any position.