hinik78 hinik78 03-02-2021 Mathematics contestada Plz 1. How much will a person payback on a $12,000 loan that has an interest rate of 12.5% at the end of 18 months? 2. Do you have any percent topics that you need me to go over? (Please ask during class time). 3. What is the difference between discounting a $500 coat 25% and marking up that $500 coat 25%? 4. What is the difference between gratuity and commission? Explain. 5. What is not included when determining commission? What must be calculated first?