Answer:
50
Step-by-step explanation:
4,500÷90=50
and to check
90×50=4500
I hope this picture helps. I'll elaborate if needed!
All you have to look at is the word "dropped" and you know it's a subtraction problem. In this case, it would be 8 - 15.
8 - 15 = -7
It would be -7<span>°C at midnight. I hoped this helped! :)</span>
