NEED HELP ASAP, I WILL GIVE BRAINLIEST Which diagram shows the parallelogram method for vector addition?

When y’all answer can y’all explain too !

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?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.