Quadrilátero e um polígono ué possui quatro lados . Essa figura geométrica bidimensional e formada por quais elementos

What is 32+4 x (16 x 1/2) -2 show your work}

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

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?