16 pound turkey cost $14.24 what is the price per pound

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

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?

Answer pls man im trying to get out of summer school