standard_description: Calculate the distance between numbers in the complex plane as the modulus of the difference, and the midpoint of a segment as the average of the numbers at its endpoints.
problem_activity: The temperatures in Jackman, Maine, are shown in the table below.
| **           Day          ** | **           Monday          ** | **           Tuesday          ** | **           Wednesday          ** | **           Thursday          ** | **           Friday          ** |
|------------------------------|---------------------------------|----------------------------------|------------------------------------|-----------------------------------|---------------------------------|
|       Temperature (°C)       |               -5                |                3                 |                 -2                 |                 0                 |               -8                |
a.   What is the average temperature in Jackman, Maine, from Monday to Friday?
b.   On Saturday, the weather reporter in Jackman says that the average temperature, from Monday to Saturday, has risen to 0 °C. What is the temperature on Saturday?


aligns: no