The mean is 2.5. also there is mean, median, mode calculators online to help you with these in the future
make a graph and put the weeks and the change wich is -20 a day until the end of the four weeks
:every week 4 the city gets -20 degrees celsius colder. This means that every 4 weeks the tempature decreases then goes bac kto its origonal
3/4 x 12 = 9
The answer is 9
6.932635
^ This is the tenths place.
Since the number after it is less than 5, we round down.
So we round to:
6.9