Answer:

Step-by-step explanation:
Im glad i could help out.
I’m pretty sure it’s A but it could also me C
Hopes it right.
Use the concept of Lagrange multipliers.
Answer:
26.13 sale price discount 12.87
Step-by-step explanation:
I do not know how to explain it to where you will understand it but the sale price is 26.13 and the discount it 12.87
Hope that helps