Answer:
- Domain:

- Range:
![(-5, 4]](https://tex.z-dn.net/?f=%28-5%2C%204%5D)
- Is the relation a function? - Yes
Step-by-step explanation:
The domain is the set of x-values and the range is the set of y-values.
A relation is a function if each value of x maps onto no more than one value of y.
Answer: 5.35
Step-by-step explanation:
S=saving
X=amount left
S-55=x
Another way : x=s-55
Original price = (sale price*100):(100-percent of discount)
(55.5*100):(100-75)= 5550:25=222 $