65 is the answer because 65 x 5 =325 which is close but it’s 10 away.
I hope that helped
sorry i cant help on that its tricky but try 8???
It's not clear what polynomial you posted, but let's say you had the polynomial
5x^3+7x^2-9x+10
This is a cubic polynomial as the largest exponent is 3. The degree is also 3. The degree of the polynomial is equal to the largest exponent.