Every society faces trade-offs because we live in a world of scarcity. Suppose a student-athlete has the opportunity to earn $800,000 next year playing for a minor league baseball team, $100,000 next year playing for a European professional football team, or $0 returning to college for another year.

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?