Nga's car insurance premium increased by $60, which was 8% of the original cost. What was the original cost of the premium?

1. Let c stand for the original cost, so 60 is 8% of c, which translates to 60 equals 0.08 times c. 2. Divide both sides by 0.08 to isolate c: c equals 60 divided by 0.08. 3. Simplify: c equals 750, so the original premium was $750. 4. Check: 8% of 750 is 0.08 times 750, which equals 60, matching the increase. 5. $480 multiplies 60 by 8 instead of dividing by 0.08, running the percent relationship backwards. _Source: OpenStax Prealgebra (CC BY 4.0), Ch 9 "Math Models and Geometry", section 9.1 Use a Problem Solving Strategy_