Answer:
1.05 (0.2x + 1/2y + 0.75z)
Step-by-step explanation:
Finding the cost of each item :
1 Sweatshirt
- Cost = $x
- Discount = 80% off
- Price = (100% - 80%)(x)
- Price = 0.2x
2 T-shirts
- Cost = $y
- Discount = Buy one, get one 50% off
- Price = (50%)(y)
- Price = 1/2y
1 Pair of Pants
- Cost = $z
- Discount = 25% off
- Price = (100% - 25%)(z)
- Price = 0.75z
Now, the final cost (after applying sales tax) is :
- 1.05 (0.2x + 1/2y + 0.75z)
- Option #1
