If the volume for 3-d polyhedra a is 300 cm3 and the volume for 3-d polyhedral b is 900 cm3, what is the percent of change from a to b?

Place the following steps in order to complete the square and solve the quadratic equation,

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

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?