Suppose that it is friday night, that xavier and her friends have been out at a party, and that they are now heading home. suppose also that xavier has had a little bit to drink, but not a lot. is it safe for her to drive home or should she call a cab instead

The owner of firewood to go is considering buying a hydraulic wood splitter which sells for $50,000. he figures it will cost an additional $100 per cord to purchase and split wood with this machine, while he can sell each cord of split wood for $125. if, for this machine, design capacity is 50 cords per day, effective capacity is 40 cords per day, and actual output is expected to be 32 cords per day, what would be its efficiency?