the temperature in anchorage changed -3.5° per hour until it reached -42° at 3:00 am friday morning. write and solve an equation to find out how long it took for the temperature to change if the starting temperature was 24.5° on thursday

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?