From 12: 00 midnight to 6: 00am, the
temperature decreased by 12°c. if the original temperature was 12°c, which expression can be used to represent this situation? plz show work.
a. 12-12
b. 12 + 12
c. 12- (-12)
d. -12 + (-12)

A.)  12 - 12.

Step-by-step explanation:

Given  : From 12:00 midnight to 6:00 am, the  temperature decreased by 12°C. If the original temperature was 12°C.

To find :  which expression can be used to represent this situation.

Solution : We have given

At 12 : 00 midnight temperature = 12 °C.

At 6 : 00 am temperature decreased  by 12 °C.

So, Final temperature  = 12 °C - 12 °C.

Therefore, A.)  12 - 12.

a 10 percent increase