The diameter of a birch tree is proportional to its age. Use the graph to determine how long it takes for a birch tree to reach a diameter of 42 inches. It takes about _
years.

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?