Answer:
previousAddition instance variable
Explanation:
In order to accomplish this you would need to add a previousAddition instance variable. In this variable you would need to save the amount that was added at the end of the process. Therefore, if a mistake were to occur you can simply call the previousAddition variable which would have that amount and subtract it from the total. This would quickly reverse the mistake, and can be easily called from the undo() method.
Answer:
The best way to turn in one part of google slides, since you can't split the slide when turning assignments on classroom, is to copy and paste the part you want to turn in into another slide and submit that portion. I've done for many projects before and if you name the different slides (Ex: Assignment Portion One 5/6/20) so it won't get confusing with the multiple slides.
This is the best way I can think of, I hope I helped, and please correct me if there is a better way!
One program would be Outlook. There is also Incredimail
Answer:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory. It is a misconception that theories turn into laws with enough research.
Explanation:
