Question 600686
The coefficients are the numbers that sit in front of the variable term. 



Coefficient of x^5:   1   (since x^5 = 1x^5)


Coefficient of x^4:   -3   (-3 is the number in front of the x^4 term)


Coefficient of x^3:   0   (there is no x^3, so we denote it as 0x^3)


Coefficient of x^2:   3.5   (assuming you made a typo and meant to say 3.5x^2)


Coefficient of x^1 or x:   -16   


Coefficient of x^0 or constant term:  0