Answer:
14 packs per hour
Step-by-step explanation:
The store sold 57 - 15 = 42 packs of toilet paper in 3 hours.
42 packs in 3 hours = 42/3 = 14 packs per hour
Answer to your problem is:
173/1000
??
The answer would be 170,000 how you do it is you find wether or not you are above the number 5 if you are you go up to the nearest number. if you are below five you round down to the nearest number. (example: 5.8 you would round to 6)
-54 / -2 = 27
So yeah, 27 would be your answer.
Hope this helped :)