There is no voltage potential at the r terminal of the thermostat. which of the following is the most probable cause?
a. the heating circuit of the thermostat is bad.
b. the thermostat is bad.
c. the control transformer is bad.
d. the cooling circuit of the thermostat is bad.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field