To find out how much the concert tickets cost if purchased in advance with a 15% discount, follow these steps:
1. Calculate the discount amount:
- 15% of [tex]$45 = 0.15 x $[/tex]45 = [tex]$6.75
2. Subtract the discount amount from the original price to find the discounted price:
- $[/tex]45 - [tex]$6.75 = $[/tex]38.25
Therefore, if the concert tickets are purchased in advance with a 15% discount, they will cost $38.25 each.