What would be the ratio of the number of cans to the price at super saver and price buster if a coupon for $1 off the total purchase is used

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

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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