These problems really aren't hard just set them equal to each other and see if what they are saying is true. Are they equal? Do they both equal 0?
Answer: If it's something like who got the better deal then Tony did.
Step-by-step explanation: The reason I say that is the fact that the 20% off made the sweatshirt $38.40 cause $9.60 was taken off!
Answer: 1
Step-by-step explanation:

So, the average rate of change is:

The question is wrong, the expression will not be in terms of h since it is a linear function.
Answer:
No real roots
Step-by-step explanation:
Roots of a quadratic are the x-intercepts of the graph