2.7.Một công nhân đứng 3 máy. XS để trong 1 ca làm việc máy I hỏng là 0,2, máy II hỏng là 0,1 và máy III hỏng là 0,15. Tìm XS để trong ca làm việc:a) Cả 3 máy không hỏng. b) Cả 3 máy đều hỏng. c) Ít nhất 1 máy hỏng. d) Ít nhất 1 máy không hỏng.

Dominic is the founder of an innovative "impromptu catering" business that provides elegant, healthy party food and decorations on less than 24 hours' notice. the company has grown by over 150 percent in the past year. dominic credits some of the company's success to studying the strategies of prominent social entrepreneurs, such as wikipedia's jimmy wales. what can dominic do to exemplify the social entrepreneurship model?

The adjusted trial balance for china tea company at december 31, 2018, is presented below:

Which three of the following expenses can student aid recover? -tuition -television -school supplies -parties and socializing -boarding/housing