Answer:
5 hours, y= how much money it will cost, and x represents how many hours
Step-by-step explanation:
y= 15x+45
120= 15x+45
-45 -45
75= 15x
75/15×= 5 hours
Showing the relationships among concepts.
1198.08
1248 / .04 = 49.92
1248 - 49.92 = 1198.08
Answer:

Step-by-step explanation:
since
, We can substitue for 
Answer:
sorry i donot know.......