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
The expression would be $0.20 x f. Once you figure out what the 'f' variable stands for, you have to multiply it by $0.20, and you will have your answer.
A.) Oxygen is an output......
I believe it would be Bone Tissue and Connective Tissue
It's the lack of milk in a person's diet many people in Africa can't afford milk. That's the best I can do, I don't know the subject very well