Show with a proof by cases that for any x, y, z ∈ Q, max(max(x, y), z) = max(x, max(y, z)). How do I do this exercise?

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

The owners of four companies competing for a contract are shown in the table below. if a report is released that advocates company b, which of the people having funded the report should result in the most skepticism? company owner of company company a jake adams company b company c company d debby smith henry rose rhonda baker o a. jake adams o b. rhonda baker o c. debby smith o d. henry rose

What is the rate for one gallon of gasoline