Pls help im behind on my work!! 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!

Thank you! =]

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics