The temperature inside Megan's freezer is 18°C below 0°C. Which answer option correctly represents this temperature?

A) -18°C

B) 18°C
C) -0.18°C
D) 0.18°C

The correct answer option is A) -18°C.

To find the temperature inside Megan's freezer, we need to subtract 18°C from 0°C (the freezing point of water).

0°C - 18°C = -18°C

Therefore, the temperature inside Megan's freezer is -18°C.