Answer:
-5
Step-by-step explanation:
The leading coefficient means the thing you're multiplying your highest power by. Here, your highest power of x is x^2, and that term's coeff. is -5, so the leading coefficient is -5.
N>4 bc it is not too bad and
This is a good expression. x+2. This is simple. x is the variable and 2 is the constant.
4 + k
4 more than a unknown number