Answer:
-4
Step-by-step explanation:
3(5-n)=27
solve
15-3n=27
subtract 15 from 2 sides
-3n=12
n=-4
Answer:
teresas store
Step-by-step explanation:
Given:
The number of people the monorail train can carry per trip = 78
The number of trips during the day = 99
Solution:
The greatest number of people the train can carry in one day equals to the product of the number of people the monorail train can carry per trip with the number of trips during the day.

Conclusion:
The option D) is the correct answer