Find the product. type your answer in the provided space. do not use spaces in your answer. to demonstrate an exponent, use the ^ key. for example, x 2should be typed in as x^2.

3x 3 y · 5x 2 y

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?