Answer:
Step-by-step explanation:
A
3 It's the highest power on any of the x values. 7x^3 contain's the highest power of 3.
B
The are 4 terms. Nothing can be combined with anything else because the powers are all different.
C
Just put the polynomial in order from highest power to lowest
7x^3 - 5x^2 - 4x + 10
The highest power is 3 and the lowest one is x^0 on the 10.