Answer: 22.5° F at 12 noon
Step-by-step explanation:
If it is already 12° F. at 5:00 am then there is only 7 hours to go till 12 noon. So if there is only 7 hours to go and it rises 1.5° F per hour, you would take 1.5 times 7 hours left and get that it will rise 10.5° F in that 7 hours and it is already 12° F so they will combine to make it 22.5° F at 12 noon.
