Serah made free wirdrenals of each from her checking account She also wrote a check for $300 What is te del cranged
her account balance

Can someone me out here number 4 plz

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?

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?