We know that the initial temperature is -3 then it rises to 8 and drops by 6 degrees then you just need to subtract six from 8 
18;45 = 9
24;16 = 8
I hope this helps
Answer:
D = -7
Step-by-step explanation:
Seven eighth, 7 over 8, 7/8, 0.875,
I don't see a mistake. You solve in parentheses first, then you solve exponents. If the exponent is 0 in this context, the answer would be 0.