Ms. Morgan's class studied the changes in average global temperature in math class as a part of their study of rational numbers. The table shows how each year varies from a base measure.
Order the five years from coldest to warmest.
Year ~ 1958 / 1964 / 1965 / 1978 / 2002
Difference From Base ~ 0.10 / -0.17 / -0.10 / 1/50 / 0.54
because 1/50 degrees Celcius is 0.02. The order would be -0.17,-0.10,0.02,0.10,0.54,which is B. Or you can order it in years: 1964,1958,1978,1965,2002.