Answer:
11-14
Step-by-step explanation: so what you got to do is just subtract the numbers they give you to find the answer to what is the net change temperature in this case subtract the number in the exercise and the result is -3.
Let's call the temperature when iko woke up: T
Between the time iko woke up and lunchtime, the temperature rose by 11. This means that the temperature at that time was the previous one plus 11: T + 11
Then by the time he went to bed, the temperature dropped by 14. This means that the temperature at that time was the previous one less 14: T + 11 - 14
To compare this temperature to the initial temperature T, we have to subtract it: T + 11 - 14 - T = 11 - 14 = -3. This means that the temperature at the end of the day was 3 degrees less than at the beginning
