Zoe is starting her own snow plowing business. Zoe has calculated that she needs to earn $550 per week to support her family. If she knows she will only be able to work 40 hours per week, what is the minimum amount of dollars per hour that she will need to charge her customers?

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?