Lisa wants to frame her little brothers drawing as a gift to her mother. the rectangle drawing is 43.5 centimeters by 934 millimeters. how many centimeters of wood framing will she need

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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?