the temperature at 6;00 am was - 20 and it was 8 degrees warmer than at midnight so if the temperature at 8:00 am was 12 degrees warmer than at midnight what was the temperature at midnight

at midnight it was -20 - 8 = -28

by the way at 8 am it was -28+12 = -16

thanks.:)

You are welcome.

-20 - 8 = -28 at midnight

thanks Anonymous and Ms Sue.!

You're welcome.

Can i ask one more

question

Sure.

a=1/2 (b1+b2)h plug in the number and solve for a

What are b1 and b2?

Which number are you plugging in for which unknown?