Value-Mart is advertising a back to school sale on notebooks. A pack of 8 notebooks sells for $7.15, where as a 6 pack of the same brand of notebooks cost $5.25. Which is the better buy? How do you know?

The equatorial radius of earth is approximately 6 × 10^3 km, while the equatorial radius of saturn is approximately 6 × 10^4 km. which of the following is true? a. the equatorial radius of saturn is approximately one hundred times that of earth. b. the equatorial radius of saturn is approximately ten times that of earth. c. the equatorial radius of earth is approximately one hundred times that of saturn. d. the equatorial radius of earth is approximately ten times that of saturn.