567 dived by 8 Reminders

Explain how you can use the associative property to evaluate (7x50)x4.

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?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.