dm me miss freezer but 12 1/2 of half feet of yarn how many equal length pieces of yarn will she have after she cuts them into 1/2 foot equal pieces

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?