the tempreture was -8 f at 6 a.m. and rose 15 f at 9 a.m. the answer is 7 what is the question?

2 answers

How many degrees warmer was it at 9 a.m. than it was at 6 a.m.?
I see it as

what was the temperature at 9 am?

-8+15 = 7