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.
ive got 4 more questions