Normally you will see these expressions in reverse order with descending powers of the variable.
-4y^4 + y^3 - y^2 + 11y + 9
So you start with the high order terms and end with a constant.
0.28 ( u just need to divide them)
Start at -9. Then go up 5, right 3.
If 14 out of 20 is correct, then that is : 14/20 = 0.70 = 70%
I’m not sure what x is but y=35
