Which real-world situation can be represented by the expression 12n – 5?
a. sandy jogs 12 miles every week at a pace of 5 miles per hour.
b. last week, marcia earned $12.00 per hour plus an additional $5.00 in tips.
c. cameron had $5.00. then, he went to the school store and bought some pencils that cost $0.12 each.
d. a group of 12 students visit a museum and get a group discount of $5.00 off their total admission cost.

It would be D, because you have 12 students who have tickets worth n amount, and all of them get a discount of $5.00 off. You would there have 12 times the number of tickets (n) minus $5.00 off from your discount

Step-by-step explanation:

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.