Select the statements that are true based on the following given information.
d = {xl x is a whole number]
e = (x1 x is a perfect square < 36)
f = {x 1 x is an even number between 20 and 30)

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?