A school’s Spanish club is selling printed caps to raise money for a trip. The printer charges $150 in advance plus $3 for every cap ordered. If the club sells caps for $12.50 each, a least how many caps do they need to sell to make a profit?

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?