the scale of a map says that 6 cm represents 15 km. what distance on the map represents an actual distance of 6 kilometers

Draw a scaled copy of the circle using a scale factor of 2

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?