The regular cost of a guitar is n. On Saturdays, all guitars are 15% off. What is the price of the guitar on Saturday?
15% = 0.15
If we take that price off, we have:
1 - 0.15 = 0.85
So the cost is 0.85n
15% = 0.15
If we take that price off, we have:
1 - 0.15 = 0.85
So the cost is 0.85n