Give me a example of a common solution

What two consecutive odd integers have a sum of -28

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

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?