Final answer:
To represent each situation digitally, you would need specific information about the situations mentioned in the question. However, for temperature, you can find an illustration of a temperature graph in Figure 1.3.8. To write an expression representing the final temperature, you would need the initial temperature and the change in temperature.
Step-by-step explanation:
To represent each situation digitally, you would need specific information about the situations mentioned in the question. However, I can provide you with an example of a digital representation for temperature. In Figure 1.3.8, you can find an illustration of a temperature graph.
To write an addition expression that represents the final temperature, you would need the values of the initial temperature and the change in temperature. For example, if the initial temperature is 25°C and the change in temperature is 10°C, the addition expression would be 25 + 10 = 35. Therefore, the final temperature would be 35°C.