Answer: A: 123x + 165
Step-by-step explanation:
If you let x be the number of nights, and the cost per night is 123, then the cost for x number of nights would be 123x. Then no matter what, the person must pay a one-time fee of 165 so the total cost would be 123x + 165. This is in the form y =mx + b so the slope would be m, which in this case is 123.