Answer:
Option (1)
Step-by-step explanation:



System of equations can be written as,


Therefore, system of equations given in Option (1) is the correct option.
I think it is moving backward because when a car is parking and you are leaving, then you would be moving backward.
Hope this helped☺☺
Answer:
It's irrational because it's not repeating or terminating decimal.
Step-by-step explanation:
Sometime you have to convert medicine amounts or maybe how much you have to cut something in surgery that you have to convert you also might use percentages figuring out the percent of something to go in a specific medication