Your little brother's class is having a bake sale to raise money for a field trip. The two items that he contributed are cupcakes and brownies. The cupcakes cost twice as much as the brownies. By
the end of the day, he sold 12 brownies and 8 cupcakes totaling $63. How much was your little
brother selling each item for? Find the price for cupcakes and brownies.

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.