1. The complement of 5% is a. 0.05 b. 1/5 c. 20% d. -5% e. None of the above

2. If a store receives discounts of 60% and 25%, then its single equivalent discount is a. 85% b. 70% c. 30% d. 15% e. None of the above

3. If a store receives discount of 60% and 25%, then its net cost rate factor is a. 0.05 b. 1/5 c. 20% d. -5% e. None of the above

4. If a store receives a discount of 10/40, then its net cost rate factor is a. 37% b. 63% c. 25% d. 50% e. None of the above