It's already reduced it remains as 69/80 because the is no greater common factor between the two.
Answer:
Five examples of real life situation that show a sequence are given as follows;
1) The progression from class to class in nursery, primary, and secondary
2) The annual increase in population of a country
3) The growth rate of living things
4) The annual weather cycles
5) The variation of temperature with altitude in the Earth's atmosphere
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
Sample of 12 measurements has a mean of 16.5 and
a sample of 15 measurements has a mean of 18.6
Take
be the mean and no of measurements
and
be the mean and no of measurements in second case

Similarly,

Mean of 27 measurements

129 divided by 5 is equal to 25 with a remainder of 4.
This means that she will need a total of 26 boxes, but only 25 of them will have 5 cupcakes in them. The last one will have 4 cupcakes.