Represent each of the following variables in the appropriate letters. Next determine wether the variable has a fixed value or a changed value.

a) The score Sarah got in a Mathematics test.

b) The distance between the Zen house and the school.

c) Temperature on the summit of Mount Everest in a day.

Step-by-step explanation:

a) Let 'm' represents score in a Mathematics test. The variable has a fixed value because the marks Sarah obtained in her test will not change

b) Let 'd' represent the distance between the Zen house and the school. The variable has a fixed value because by using the same route, the distance will always remain constant.

c) Let 't' represent the temperature on the summit of Mount Everest. The variable has a changed value because the temperature may alter depending on the time of day and also climatic conditions which will affect the temperature.