Which inequality best models the situation if variable t is the temperature in degrees Celsius?


A severe weather warning is issued when temperatures fall below –18.5°C. Show the possible temperatures when the alert is issued.


A.

t < –18.5 and t may be a negative number.


B.

t < –18.5 and t must be a positive number.


C.

t > –18.5 and t may be a negative number.


D.

t > –18.5 and t must be a positive number.

please help Ive got 4 more questions